| | 000 | ↓ reference, information |
| | 000 | ↓ information and computer science |
| ↑ | 001 | ↓ knowledge |
| ↑ | 001.4 | ↓ research methods and statistics |
| ↑ | 001.5 | ↓ information, communication, HCI, usability |
| ↑ | 003 | ↓ systems |
| ↑ | 003.5 | ↓ communication and control theory, cybernetics |
| ↑ | 003.7 | ↓ system types |
| ↑ | 003.8 | ↓ systems according to time |
| ↑ | 004 | ↓ hardware, networks, computer science generally |
| ↑ | 004.16 | ↓ computer types, microcomputers |
| ↑ | 004.22 | ↓ architecture of computers |
| ↑ | 004.3 | ↓ processing modes |
| ↑ | 004.6 | ↓ networks, Internet |
| ↑ | 005 | ↓ programming and data |
| ↑ | 005.1 | ↓ programming |
| ↑ | 005.117 | ↓ object-oriented programming |
| ↑ | 005.13 | ↓ programming languages |
| ↑ | 005.14 | ↓ tests, measures, debugging |
| ↑ | 005.2 | ↓ programming for the Net: ASP, JS, JSP, MPI... |
| ↑ | 005.3 | ↓ programs |
| ↑ | 005.4 | ↓ operative systems |
| ↑ | 005.7 | ↓ data, databases |
| ↑ | 005.72 | ↓ formats, HTML, LaTEX |
| ↑ | 005.74 | ↓ databases, big data |
| ↑ | 005.8 | ↓ data security |
| ↑ | 005.82 | ↓ encryption, cryptography |
| ↑ | 006 | ↓ methods, applications |
| ↑ | 006.3 | ↓ artificial intelligence |
| ↑ | 006.301 | ↓ AI philosophy and problems |
| ↑ | 006.31 | ↓ machine learning, data mining |
| ↑ | 006.32 | ↓ neural networks |
| ↑ | 006.35 | ↓ natural language processing, NLP |
| ↑ | 006.37 | ↓ artificial vision |
| ↑ | 006.4 | ↓ pattern recognition |
| ↑ | 006.6 | ↓ digital images |
| ↑ | 006.7 | ↓ multimedia, Web interfaces |
| ↑ | 010 | ↓ bibliography |
| ↑ | 011 | ↓ bibliographies and catalogues |
| ↑ | 016 | ↓ bibliography on specific subjects |
| ↑ | 016.2 | ↓ religious bibliography |
| ↑ | 016.5 | ↓ science bibliography |
| ↑ | 016.54 | ↓ bibliography of chemistry |
| ↑ | 016.78 | ↓ music bibliography |
| ↑ | 016.78026 | ↓ bibliography on scores and texts |
| ↑ | 016.780262 | ↓ bibliography on musical manuscripts |
| ↑ | 016.78092 | ↓ bibliography on musicians |
| ↑ | 016.780945 | ↓ Italian music bibliography |
| ↑ | 016.781 | ↓ bibliography on music principles and forms |
| ↑ | 016.782 | ↓ bibliography on vocal music |
| ↑ | 016.7821 | ↓ bibliography on dramatic music |
| ↑ | 016.7822 | ↓ bibliography on non-dramatic vocal music |
| ↑ | 016.8 | ↓ bibliography on literature |
| ↑ | 016.9 | ↓ historical-geographical bibliography |
| | 020 | ↓ library and information science |
| ↑ | 020 | ↓ library science in general |
| ↑ | 025 | ↓ library activities and services |
| ↑ | 025.3 | ↓ cataloguing |
| ↑ | 025.4 | ↓ subject indexing |
| ↑ | 027 | ↓ libraries and archives |
| ↑ | 069 | ↓ museology |
| ↑ | 070 | ↓ news, press, publishing |
| ↑ | 070.4 | ↓ journalism |
| ↑ | 070.5 | ↓ publishing |
| ↑ | 079.6 | ↓ |
| | 100 | ↓ philosophy, psychology |
| | 150 | ↓ psychology, perception |
| ↑ | 152 | ↓ perception, emotions |
| ↑ | 152.1 | ↓ sensorial perception, vision |
| ↑ | 152.4 | ↓ emotions |
| ↑ | 153 | ↓ mental processes, understanding |
| ↑ | 153.4 | ↓ thought, reasoning, judgment |
| ↑ | 153.8 | ↓ will, choice, decisions |
| ↑ | 153.9 | ↓ intelligence, skills |
| ↑ | 160 | ↓ logic |
| | 170 | ↓ ethics |
| ↑ | 170 | ↓ ethics generally, bioethics |
| ↑ | 172 | ↓ |
| ↑ | 172.4 | ↓ ethics of international relationships, peace |
| ↑ | 174 | ↓ professional ethics |
| ↑ | 174.2 | ↓ |
| ↑ | 179 | ↓ applied ethics |
| ↑ | 181 | ↓ Eastern philosophy |
| ↑ | 181.07 | ↓ Islamic philosophy |
| ↑ | 181.4 | ↓ Indian philosophy |
| | 200 | ↓ religion |
| ↑ | 200.9 | ↓ history of religion |
| ↑ | 204 | ↓ religious experience, life and practice |
| | 220 | ↓ The Bible |
| ↑ | 220.9 | ↓ Bible history |
| ↑ | 220.93 | ↓ archaeology of the Bible |
| ↑ | 224 | ↓ Old Testament prophetic books |
| ↑ | 232 | ↓ Jesus and his family |
| | 240 | ↓ Christian practice and observance |
| ↑ | 248 | ↓ Christian practice |
| ↑ | 248.4 | ↓ Christian life and practice |
| ↑ | 251.53 | ↓ Jesuits |
| ↑ | 262.9 | ↓ Church law |
| ↑ | 266 | ↓ Christian missions |
| ↑ | 266.2 | ↓ Catholic missions |
| ↑ | 270.8 | ↓ history of Church after 1789 |
| ↑ | 270.82 | ↓ history of Church in 20th century |
| ↑ | 271.3 | ↓ history of Franciscans |
| ↑ | 271.5 | ↓ history of regular clerics |
| ↑ | 271.53 | ↓ history of Jesuits |
| ↑ | 274 | ↓ |
| ↑ | 274.2 | ↓ christianism in England |
| ↑ | 275 | ↓ Christianism in Asia |
| ↑ | 276 | ↓ Christianism in Africa |
| ↑ | 282 | ↓ Roman church |
| ↑ | 282.09 | ↓ Roman Church history |
| ↑ | 282.5 | ↓ catholic Church in Asia |
| ↑ | 284 | ↓ Protestantism |
| | 290 | ↓ non-Christian religions |
| ↑ | 292 | ↓ Greek and Roman religion |
| ↑ | 294 | ↓ Buddhism, Hinduism |
| ↑ | 294.3 | ↓ Buddhism |
| ↑ | 294.5 | ↓ Hinduism |
| ↑ | 296 | ↓ Judaism |
| ↑ | 296.09 | ↓ history of Judaism |
| ↑ | 296.1 | ↓ sources of Judaism |
| ↑ | 296.12 | ↓ Talmud literature |
| ↑ | 296.16 | ↓ cabalistic literature |
| ↑ | 296.3 | ↓ Jew theology and ethics |
| ↑ | 296.8 | ↓ Judaism denominations and movements |
| ↑ | 297 | ↓ Islam |
| ↑ | 297.09 | ↓ history of Islam |
| ↑ | 297.0904 | ↓ Islamism in 20th century |
| ↑ | 297.1 | ↓ sources of Islam, Koran |
| ↑ | 297.3 | ↓ Islamic worship |
| ↑ | 297.4 | ↓ Sufism |
| ↑ | 297.6 | ↓ Islam chiefs and organizations, Muhammad |
| ↑ | 299 | ↓ other religions |
| ↑ | 299.31 | ↓ religion of ancient Egyptians |
| ↑ | 299.51 | ↓ Confucianism and Taoism |
| ↑ | 299.6 | ↓ religions of Black Africa |
| | 300 | ↓ social sciences |
| | 300 | ↓ sociology |
| ↑ | 301 | ↓ sociology in general |
| ↑ | 301.096 | ↓ sociology and anthropology of Africa |
| ↑ | 302 | ↓ social interaction |
| ↑ | 303 | ↓ social processes |
| ↑ | 304 | ↓ sociological essays |
| ↑ | 304.2 | ↓ human ecology |
| ↑ | 304.5 | ↓ nature and culture, human ethology, sociobiology |
| ↑ | 304.6 | ↓ population |
| ↑ | 304.61 | ↓ characters of population |
| ↑ | 304.8 | ↓ population movements |
| ↑ | 305 | ↓ social groups |
| ↑ | 305.42 | ↓ social function and status of women |
| ↑ | 305.6 | ↓ religious groups |
| ↑ | 305.697 | ↓ Muslims |
| ↑ | 305.8 | ↓ ethnical groups |
| ↑ | 305.800968 | ↓ apartheid |
| ↑ | 305.89159 | ↓ Kurds |
| ↑ | 305.8924 | ↓ Jews |
| ↑ | 305.8927 | ↓ Arabs |
| ↑ | 305.8928 | ↓ Ethopians |
| ↑ | 306 | ↓ culture and institutions |
| ↑ | 306.096 | ↓ African social history |
| ↑ | 307 | ↓ communities |
| | 310 | ↓ statistics |
| ↑ | 310 | ↓ general statistics |
| | 320 | ↓ political sciences |
| ↑ | 320 | ↓ anthropology in general |
| ↑ | 320.01 | ↓ |
| ↑ | 320.1 | ↓ the state |
| ↑ | 320.5 | ↓ political ideologies |
| ↑ | 320.531 | ↓ socialism |
| ↑ | 320.532 | ↓ Communism |
| ↑ | 320.55 | ↓ religion-grounded theories and ideologies |
| ↑ | 320.9 | ↓ situation and political conditions |
| ↑ | 320.94 | ↓ political conditions in Europe |
| ↑ | 320.945 | ↓ political conditions in Italy |
| ↑ | 320.95 | ↓ political conditions in Asia |
| ↑ | 320.956 | ↓ political conditions in Middle East |
| ↑ | 320.95694 | ↓ political conditions in Palestine and Israel |
| ↑ | 320.96 | ↓ political conditions in Africa |
| ↑ | 320.965 | ↓ political conditions in Algeria |
| ↑ | 320.968 | ↓ political conditions in South Africa |
| ↑ | 321 | ↓ forms of government |
| ↑ | 321.8 | ↓ democratic government |
| ↑ | 321.9 | ↓ authoritarian government |
| ↑ | 322 | ↓ relations of state with organized groups |
| ↑ | 322.42 | ↓ revolutionists and mutinous |
| ↑ | 323 | ↓ civil and political rights |
| ↑ | 323.1 | ↓ civil and political rights of non-dominant groups |
| ↑ | 323.168 | ↓ minority rights in South Africa |
| ↑ | 323.4 | ↓ limitations of civil rights |
| ↑ | 323.6 | ↓ citizenship |
| ↑ | 324 | ↓ political life |
| ↑ | 324.2 | ↓ political parties |
| ↑ | 325 | ↓ migration |
| ↑ | 325.2 | ↓ emigration |
| ↑ | 325.245 | ↓ Italian emigration |
| ↑ | 325.3 | ↓ colonization |
| ↑ | 325.309 | ↓ colonization history |
| ↑ | 325.309034 | ↓ colonization in 19th Century |
| ↑ | 325.32 | ↓ imperialism |
| ↑ | 325.34 | ↓ European colonization |
| ↑ | 325.341 | ↓ British colonization |
| ↑ | 325.343 | ↓ German colonization |
| ↑ | 325.344 | ↓ French colonization |
| ↑ | 325.344096 | ↓ French colonization in Africa |
| ↑ | 325.345 | ↓ Italian colonization |
| ↑ | 325.345096 | ↓ Italian colonization in Africa |
| ↑ | 325.346 | ↓ Spanish and Portuguese colonization |
| ↑ | 325.3469 | ↓ Portuguese colonization |
| ↑ | 325.6 | ↓ colonization of Africa |
| ↑ | 327 | ↓ international relations |
| ↑ | 327.0904 | ↓ international relations in 20th Century |
| ↑ | 327.12 | ↓ secret service |
| ↑ | 327.17 | ↓ international cooperation |
| ↑ | 327.172 | ↓ promotion of peace |
| ↑ | 327.2 | ↓ diplomacy |
| ↑ | 327.2092 | ↓ ambassadors |
| ↑ | 327.4 | ↓ European international relations |
| ↑ | 327.406 | ↓ Europe-Africa relations |
| ↑ | 327.41 | ↓ international relations of Britain |
| ↑ | 327.44 | ↓ international relations of France |
| ↑ | 327.45 | ↓ international relations of Italy |
| ↑ | 327.47 | ↓ international relationships of Eastern Europe |
| ↑ | 327.5 | ↓ Asian international relations |
| ↑ | 327.5691 | ↓ Syrian international relations |
| ↑ | 327.5694 | ↓ international relations of Israel and Palestine |
| ↑ | 327.6 | ↓ African international relations |
| ↑ | 327.7 | ↓ North-American international relations
|
| ↑ | 327.73 | ↓ international relations of USA |
| ↑ | 329 | ↓ political parties [obsolete] |
| | 330 | ↓ economics |
| ↑ | 330 | ↓ economics in general |
| ↑ | 330.0151 | ↓ mathematical economics |
| ↑ | 330.1 | ↓ economic systems, schools and theories |
| ↑ | 330.17 | ↓ theory of property |
| ↑ | 330.9 | ↓ economical conditions |
| ↑ | 330.91 | ↓ economic conditions by region |
| ↑ | 330.94 | ↓ economical conditions in Europe |
| ↑ | 330.95 | ↓ economic conditions in Asia |
| ↑ | 330.96 | ↓ economic conditions in Africa |
| ↑ | 331 | ↓ labour economics |
| ↑ | 331.4 | ↓ working women |
| ↑ | 331.6 | ↓ workers of particular ethnic groups |
| ↑ | 332 | ↓ finance economics |
| ↑ | 332.1 | ↓ banks |
| ↑ | 332.4 | ↓ currency |
| ↑ | 333 | ↓ real estate |
| ↑ | 333.3 | ↓ private property, expertise |
| ↑ | 333.31 | ↓ land reform |
| ↑ | 333.33 | ↓ land sell |
| ↑ | 333.337 | ↓ selling urban land |
| ↑ | 333.7 | ↓ natural resources, energy |
| ↑ | 333.72 | ↓ conservation |
| ↑ | 333.95 | ↓ biological resources |
| ↑ | 334 | ↓ cooperatives |
| ↑ | 334.6 | ↓ producer cooperatives |
| ↑ | 335 | ↓ socialist economy |
| ↑ | 335.0096 | ↓ socialism in Africa |
| ↑ | 335.4 | ↓ Marxist systems |
| ↑ | 336 | ↓ public finance |
| ↑ | 337 | ↓ international economical politics |
| ↑ | 337.1 | ↓ multilateral economic cooperation |
| ↑ | 337.4 | ↓ European foreign policy |
| ↑ | 338 | ↓ production, microeconomics |
| ↑ | 338.02 | ↓ products and services, study of commodities |
| ↑ | 338.06 | ↓ productive efficiency, innovation |
| ↑ | 338.1 | ↓ agricultural economics |
| ↑ | 338.1096 | ↓ economics of African agriculture |
| ↑ | 338.17 | ↓ agricultural products |
| ↑ | 338.2 | ↓ mining economics |
| ↑ | 338.2728 | ↓ oil economics |
| ↑ | 338.5 | ↓ general production economics |
| ↑ | 338.54 | ↓ economic fluctuations |
| ↑ | 338.6 | ↓ production organization |
| ↑ | 338.9 | ↓ economical development and growth |
| ↑ | 338.91 | ↓ international development and growth |
| ↑ | 338.92 | ↓ specific ecomonic policies |
| ↑ | 338.927 | ↓ environmental economy, sustainable development |
| ↑ | 338.96 | ↓ economical development of Africa |
| ↑ | 339 | ↓ macroeconomics |
| | 340 | ↓ law |
| ↑ | 340 | ↓ law in general |
| ↑ | 340.07 | ↓ law teaching |
| ↑ | 340.0711 | ↓ university law schools |
| ↑ | 340.09 | ↓ history and geography of law |
| ↑ | 340.1 | ↓ law philosophy and theory |
| ↑ | 340.112 | ↓ law and ethics |
| ↑ | 340.2 | ↓ comparative law |
| ↑ | 340.59 | ↓ Islamic law |
| ↑ | 340.9 | ↓ conflict of laws |
| ↑ | 340.92 | ↓ conflict of laws on contracts and representation |
| ↑ | 341 | ↓ international law |
| ↑ | 341.1 | ↓ pacifism [obsolete] |
| ↑ | 341.2 | ↓ treaties |
| ↑ | 341.23 | ↓ United Nations |
| ↑ | 341.2422 | ↓ treatises of European Union |
| ↑ | 341.3 | ↓ relationships between states |
| ↑ | 341.4 | ↓ jurisdiction on space |
| ↑ | 341.45 | ↓ open sea |
| ↑ | 341.6 | ↓ law of nations, war law |
| ↑ | 341.7 | ↓ international cooperation law |
| ↑ | 342 | ↓ public, administrative, constitutional law |
| ↑ | 342.06 | ↓ administrative law |
| ↑ | 342.066 | ↓ administrative procedure |
| ↑ | 342.08 | ↓ jurisdiction on persons |
| ↑ | 342.085 | ↓ rights and personal activities |
| ↑ | 342.0853 | ↓ freedom of information and opinion |
| ↑ | 342.0858 | ↓ privacy protection |
| ↑ | 342.0878 | ↓ women rights |
| ↑ | 342.4 | ↓ constitutional and administrative law in Europe |
| ↑ | 343 | ↓ military, public property, fiscal law |
| ↑ | 343.02 | ↓ public heritage law |
| ↑ | 343.025 | ↓ real estate |
| ↑ | 343.07 | ↓ economical law |
| ↑ | 343.071 | ↓ protection of consumers |
| ↑ | 343.076 | ↓ agriculture regulation |
| ↑ | 343.078 | ↓ secondary industries and services |
| ↑ | 343.08 | ↓ trade regulation |
| ↑ | 343.09 | ↓ public service law |
| ↑ | 343.094 | ↓ road transport law |
| ↑ | 343.094026 | ↓ traffic laws |
| ↑ | 344 | ↓ social law, safety, environment, nature reserves |
| ↑ | 344.01 | ↓ labour law |
| ↑ | 344.017 | ↓ professional qualification law |
| ↑ | 344.04 | ↓ law of social problems and services |
| ↑ | 344.041 | ↓ healthcare staff law |
| ↑ | 344.0419 | ↓ medical profession law |
| ↑ | 344.042 | ↓ laws on food and drugs |
| ↑ | 344.046 | ↓ environmental protection |
| ↑ | 344.09 | ↓ culture and religion law |
| ↑ | 345 | ↓ penal law |
| ↑ | 346 | ↓ private, civil, urbanistic law |
| ↑ | 346.0026 | ↓ texts of acts and verdicts of private law |
| ↑ | 346.01 | ↓ law of persons and families |
| ↑ | 346.013 | ↓ legal capacity of persons |
| ↑ | 346.0138 | ↓ capacity of persons with mental disorders |
| ↑ | 346.015 | ↓ family law |
| ↑ | 346.016 | ↓ marriage, domestic partnership, civil union |
| ↑ | 346.016026 | ↓ texts of acts on marriage |
| ↑ | 346.0166 | ↓ divorce |
| ↑ | 346.02 | ↓ contracts and representation |
| ↑ | 346.02026 | ↓ texts of acts on contracts and representation |
| ↑ | 346.022 | ↓ contracts |
| ↑ | 346.03 | ↓ offenses |
| ↑ | 346.03026 | ↓ texts of acts on offenses |
| ↑ | 346.031 | ↓ employers responsibility |
| ↑ | 346.032 | ↓ negligence |
| ↑ | 346.0322 | ↓ accidents |
| ↑ | 346.0323 | ↓ personal injuries |
| ↑ | 346.04 | ↓ property |
| ↑ | 346.043 | ↓ real estate law |
| ↑ | 346.0434 | ↓ real estate tenancy |
| ↑ | 346.04348 | ↓ location of agricultural land |
| ↑ | 346.0435 | ↓ easement |
| ↑ | 346.0436 | ↓ real estate sell |
| ↑ | 346.045 | ↓ land planning |
| ↑ | 346.048 | ↓ copyright, patents and trade marks law |
| ↑ | 346.05 | ↓ inheritance |
| ↑ | 346.052 | ↓ inheritance and succession |
| ↑ | 346.054 | ↓ testament |
| ↑ | 346.059 | ↓ trusteeship, fideicommissum |
| ↑ | 346.06 | ↓ organizations, associations |
| ↑ | 346.064 | ↓ no-profit organizations |
| ↑ | 346.065 | ↓ law of enterprises |
| ↑ | 346.066 | ↓ company law |
| ↑ | 346.068 | ↓ enterprises without legal personality |
| ↑ | 346.07 | ↓ commercial law |
| ↑ | 346.072 | ↓ law of selling |
| ↑ | 346.073 | ↓ law of loan |
| ↑ | 346.074 | ↓ warranted operations |
| ↑ | 346.077 | ↓ law of creditors |
| ↑ | 346.08 | ↓ bank and insurance law |
| ↑ | 346.09 | ↓ investment and negotiable instrument law |
| ↑ | 346.092 | ↓ investment law |
| ↑ | 346.096 | ↓ negotiable instrument law |
| ↑ | 347 | ↓ civil and processual law
|
| ↑ | 347.01 | ↓ tribunals |
| ↑ | 347.016 | ↓ public officers |
| ↑ | 347.07 | ↓ cases |
| ↑ | 347.077 | ↓ judgments |
| ↑ | 347.09 | ↓ arbitration |
| ↑ | 348 | ↓ laws, regulations, jurisprudence |
| ↑ | 349 | ↓ law in specific states |
| ↑ | 349.4 | ↓ law in European states |
| ↑ | 349.44 | ↓ French law |
| ↑ | 349.45 | ↓ Italian law [see also individual matters] |
| ↑ | 349.5 | ↓ law in Asian countries |
| ↑ | 349.52 | ↓ Japanese law |
| ↑ | 349.6 | ↓ law in African countries |
| ↑ | 349.63 | ↓ Ethopian law |
| ↑ | 349.65 | ↓ Algerian law |
| ↑ | 349.67 | ↓ law in central Africa |
| | 350 | ↓ public administration and military science |
| ↑ | 351 | ↓ public administration |
| ↑ | 352.5 | ↓ heritage administration |
| ↑ | 355 | ↓ military science |
| ↑ | 358.4 | ↓ air force and operations |
| ↑ | 359 | ↓ maritime force and operations |
| | 360 | ↓ social problems and services |
| ↑ | 361 | ↓ social services |
| ↑ | 361.6 | ↓ public intervention |
| ↑ | 361.610945 | ↓ social politics in Italy |
| ↑ | 361.65 | ↓ welfare state |
| ↑ | 362 | ↓ welfare |
| ↑ | 362.1 | ↓ health services |
| ↑ | 362.7 | ↓ young people |
| ↑ | 363 | ↓ security and social problems |
| ↑ | 363.1 | ↓ public security |
| ↑ | 363.12 | ↓ transportation risk |
| ↑ | 363.125 | ↓ road transportation risk |
| ↑ | 363.17 | ↓ dangerous substances |
| ↑ | 363.25 | ↓ criminal investigation |
| ↑ | 363.3 | ↓ civil protection, disasters |
| ↑ | 363.6 | ↓ public services |
| ↑ | 363.69 | ↓ cultural heritage protection |
| ↑ | 363.7 | ↓ pollution, environmental concerns |
| ↑ | 364 | ↓ criminology |
| ↑ | 368 | ↓ insurance |
| | 370 | ↓ education |
| ↑ | 370 | ↓ education in general, pedagogy, textbooks at Physics Library |
| ↑ | 370.96 | ↓ learning in Africa |
| ↑ | 371 | ↓ teaching activities |
| ↑ | 371.35 | ↓ remote education, e-learning |
| ↑ | 372 | ↓ primary school |
| ↑ | 373 | ↓ secondary school |
| ↑ | 378 | ↓ university |
| ↑ | 378.4529 | ↓ University of Pavia |
| | 380 | ↓ communication |
| ↑ | 382 | ↓ international trade |
| ↑ | 382.09 | ↓ history and geography of international trade |
| ↑ | 385 | ↓ rail transport |
| ↑ | 386 | ↓ river transport |
| ↑ | 386.4 | ↓ transport via canals |
| ↑ | 386.43 | ↓ Suez Canal |
| ↑ | 387 | ↓ maritime and air transport |
| ↑ | 387.5 | ↓ maritime transport |
| ↑ | 388 | ↓ transportation |
| | 390 | ↓ customs |
| ↑ | 390 | ↓ customs, folklore |
| | 400 | ↓ languages |
| ↑ | 420 | ↓ English in general |
| ↑ | 423 | ↓ English dictionaries |
| ↑ | 433 | ↓ German dictionaries |
| ↑ | 443 | ↓ French dictionaries |
| ↑ | 453 | ↓ Italian dictionaries |
| ↑ | 463 | ↓ Spanish dictionaries |
| ↑ | 491 | ↓ Indo-iranic languages, Russian language |
| ↑ | 492 | ↓ Semitic languages, Arabian language |
| ↑ | 495 | ↓ Eastern languages, Chinese |
| ↑ | 496 | ↓ African languages |
| | 500 | ↓ pure sciences |
| | 500 | ↓ science |
| ↑ | 500 | ↓ sciences generally |
| ↑ | 501 | ↓ philosophy of science |
| ↑ | 502 | ↓ professions and materials |
| ↑ | 502.8 | ↓ techniques, devices, equipment |
| ↑ | 502.82 | ↓ microscopy |
| ↑ | 503 | ↓ scientific dictionaries and encyclopedias |
| ↑ | 506 | ↓ scientific organizations and management |
| ↑ | 507 | ↓ science didactics, textbooks at Botta 2 |
| ↑ | 509 | ↓ history of science |
| | 510 | ↓ mathematics |
| ↑ | 510 | ↓ mathematics generally |
| ↑ | 510.1 | ↓ philosophy of mathematics |
| ↑ | 510.21 | ↓ mathematics tables |
| ↑ | 510.28 | ↓ techniques and devices for mathematics |
| ↑ | 510.285 | ↓ computers in mathematics |
| ↑ | 510.7 | ↓ mathematics teaching |
| ↑ | 510.9 | ↓ history of mathematics |
| ↑ | 511 | ↓ general principles of mathematics |
| ↑ | 511.3 | ↓ mathematical logic, computability |
| ↑ | 511.32 | ↓ sets |
| ↑ | 511.35 | ↓ recursitivy, cellular automata, λ calculus |
| ↑ | 511.4 | ↓ approximations, error |
| ↑ | 511.5 | ↓ graph theory |
| ↑ | 511.6 | ↓ combinatorics |
| ↑ | 512 | ↓ algebra |
| ↑ | 512.2 | ↓ group theory |
| ↑ | 512.3 | ↓ field theory |
| ↑ | 512.4 | ↓ rings |
| ↑ | 512.482 | ↓ Lie algebras and groups |
| ↑ | 512.5 | ↓ linear algebra |
| ↑ | 512.6 | ↓ category theory, homological algebra, K theory |
| ↑ | 512.7 | ↓ number theory |
| ↑ | 512.72 | ↓ elementar number theory |
| ↑ | 512.74 | ↓ algebraic number theory |
| ↑ | 512.75 | ↓ geometry of numbers |
| ↑ | 512.9 | ↓ foundations of algebra, logarithms |
| ↑ | 514 | ↓ topology |
| ↑ | 514.2 | ↓ algebraic topology |
| ↑ | 514.7 | ↓ analytical, differential, global topology |
| ↑ | 514.74 | ↓ global analysis, fractals |
| ↑ | 515 | ↓ calculus |
| ↑ | 515.021 | ↓ tables of calculus |
| ↑ | 515.07 | ↓ exercises in analysis |
| ↑ | 515.2 | ↓ general aspects of calculus |
| ↑ | 515.24 | ↓ sequences and series, Fourier analysis |
| ↑ | 515.3 | ↓ differential calculus |
| ↑ | 515.35 | ↓ differential equations |
| ↑ | 515.352 | ↓ ordinary differential equations, ODEs |
| ↑ | 515.353 | ↓ partial differential equations, PDEs |
| ↑ | 515.355 | ↓ nonlinear differential equations |
| ↑ | 515.39 | ↓ dynamical systems, chaos |
| ↑ | 515.4 | ↓ integral calculus, integral equations |
| ↑ | 515.42 | ↓ measure and integration theory |
| ↑ | 515.45 | ↓ integral equations |
| ↑ | 515.5 | ↓ special functions |
| ↑ | 515.6 | ↓ other analytical methods |
| ↑ | 515.62 | ↓ finite differences |
| ↑ | 515.64 | ↓ calculus of variations |
| ↑ | 515.7 | ↓ functional analysis |
| ↑ | 515.72 | ↓ operator calculus, transforms |
| ↑ | 515.75 | ↓ functional equations |
| ↑ | 515.785 | ↓ abstract harmonic calculus |
| ↑ | 515.8 | ↓ real variable functions |
| ↑ | 515.9 | ↓ complex variable functions |
| ↑ | 515.93 | ↓ functions of one complex variable |
| ↑ | 515.94 | ↓ functions of several complex variables |
| ↑ | 515.96 | ↓ potential theory |
| ↑ | 516 | ↓ geometry |
| ↑ | 516.08 | ↓ convex sets |
| ↑ | 516.3 | ↓ analytical geometries |
| ↑ | 516.35 | ↓ algebraic geometry |
| ↑ | 516.353 | ↓ several-dimension algebraic manifolds |
| ↑ | 516.36 | ↓ differential and integral geometry |
| ↑ | 516.5 | ↓ projective geometry |
| ↑ | 516.6 | ↓ abstract descriptive geometry |
| ↑ | 516.9 | ↓ non-Euclidean geometries |
| ↑ | 518 | ↓ numerical analysis |
| ↑ | 518.4 | ↓ numerical methods in algebra and in number theory |
| ↑ | 518.5 | ↓ numerical approximation |
| ↑ | 518.6 | ↓ numerical methods in analysis |
| ↑ | 518.63 | ↓ numerical solutions of ordinal differential equations |
| ↑ | 518.64 | ↓ numerical solutions of partial differential equations |
| ↑ | 519 | ↓ probability, statistics, applied maths |
| ↑ | 519.2 | ↓ probability |
| ↑ | 519.23 | ↓ stochastic processes, Markov chains, martingales |
| ↑ | 519.3 | ↓ game theory |
| ↑ | 519.4 | ↓ applied numerical analysis, finite elements, MATLAB |
| ↑ | 519.5 | ↓ mathematical statistics |
| ↑ | 519.53 | ↓ descriptive statistics, multivariate analysis |
| ↑ | 519.54 | ↓ statistical inference |
| ↑ | 519.55 | ↓ time series analysis |
| ↑ | 519.6 | ↓ mathematical optimization |
| ↑ | 519.7 | ↓ programming theory, operations research |
| ↑ | 519.8 | ↓ mathematical methods of sciences |
| | 520 | ↓ astronomy |
| ↑ | 520 | ↓ astronomy generally |
| ↑ | 523.44 | ↓ asteroids |
| ↑ | 526 | ↓ mathematical geography, topography |
| ↑ | 526.9 | ↓ surveying |
| | 530 | ↓ physics |
| ↑ | 530 | ↓ physics in general |
| ↑ | 530.021 | ↓ physics tables |
| ↑ | 530.092 | ↓ physicists |
| ↑ | 530.1 | ↓ theoretical and mathematical physics |
| ↑ | 530.11 | ↓ relativity |
| ↑ | 530.12 | ↓ quantum physics |
| ↑ | 530.13 | ↓ statistical mechanics |
| ↑ | 530.14 | ↓ fields and waves |
| ↑ | 530.15 | ↓ mathematical physics |
| ↑ | 530.4 | ↓ states of matter |
| ↑ | 530.41 | ↓ solid state physics |
| ↑ | 530.415 | ↓ mass diffusion and transfer |
| ↑ | 530.42 | ↓ liquid state physics |
| ↑ | 530.44 | ↓ plasma and ionized gas physics |
| ↑ | 530.8 | ↓ measurement |
| ↑ | 531 | ↓ classical mechanics, continuum mechanics |
| ↑ | 531.1 | ↓ mechanics, statics |
| ↑ | 531.16 | ↓ particle mechanics |
| ↑ | 531.3 | ↓ solid dynamics |
| ↑ | 531.6 | ↓ energy |
| ↑ | 532 | ↓ fluid mechanics |
| ↑ | 532.05 | ↓ fluid dynamics |
| ↑ | 533 | ↓ gas mechanics |
| ↑ | 534 | ↓ sound and vibrations |
| ↑ | 535 | ↓ optics |
| ↑ | 535.2 | ↓ physical optics, nonlinear optics |
| ↑ | 535.8 | ↓ optical spectroscopy in infrared and ultraviolet |
| ↑ | 536 | ↓ thermology |
| ↑ | 536.5 | ↓ temperature |
| ↑ | 536.56 | ↓ cryogeny, low temperatures |
| ↑ | 536.7 | ↓ thermodynamics |
| ↑ | 537 | ↓ electromagnetism |
| ↑ | 537.535 | ↓ X and gamma rays electronics |
| ↑ | 537.62 | ↓ conductivity and electric resistance |
| ↑ | 538 | ↓ magnetism |
| ↑ | 538.36 | ↓ magnetic resonance |
| ↑ | 538.362 | ↓ NMR: nuclear magnetic resonance |
| ↑ | 538.364 | ↓ EPR: electronic paramagnetic resonance |
| ↑ | 539 | ↓ modern physics |
| ↑ | 539.2 | ↓ radiations |
| ↑ | 539.7 | ↓ atomic and nuclear physics |
| ↑ | 539.72 | ↓ particle physics, ionizing radiations |
| ↑ | 539.721 | ↓ neutrons and other particles |
| ↑ | 539.722 | ↓ ionizing radiations, X, gamma and cosmic rays |
| ↑ | 539.75 | ↓ nuclear interactions, radioactivity |
| ↑ | 539.77 | ↓ particle and radioactivity detection and measure |
| | 540 | ↓ chemistry |
| ↑ | 540 | ↓ chemistry in general |
| ↑ | 540.14 | ↓ nomenclature |
| ↑ | 540.2 | ↓ miscellaneous works in chemistry |
| ↑ | 540.7 | ↓ education and research in chemistry |
| ↑ | 540.76 | ↓ exercice and auxiliary books in chemistry |
| ↑ | 540.9 | ↓ history of chemistry |
| ↑ | 540.92 | ↓ biographies of chemists |
| ↑ | 541 | ↓ physical chemistry |
| ↑ | 541.042 | ↓ matter state chemistry, solid state |
| ↑ | 541.2 | ↓ theoretic chemistry |
| ↑ | 541.22 | ↓ molecular structure |
| ↑ | 541.220 | ↓ formulas, specifications |
| ↑ | 541.223 | ↓ stereochemistry |
| ↑ | 541.224 | ↓ chemical bonds, valency, radicals |
| ↑ | 541.2242 | ↓ coordination compounds, blenders |
| ↑ | 541.26 | ↓ stoichiometry |
| ↑ | 541.28 | ↓ quantum chemistry |
| ↑ | 541.3 | ↓ various subects in physical chemistry |
| ↑ | 541.33 | ↓ surface chemistry, adsorption, adhesion |
| ↑ | 541.34 | ↓ chemistry of solutions, colloids |
| ↑ | 541.345 | ↓ colloid chemistry |
| ↑ | 541.348 | ↓ solvents |
| ↑ | 541.35 | ↓ photochemistry |
| ↑ | 541.36 | ↓ thermochemistry |
| ↑ | 541.363 | ↓ state changes, phase transformations |
| ↑ | 541.368 | ↓ reactions at extreme temperatures |
| ↑ | 541.369 | ↓ chemical thermodynamics |
| ↑ | 541.37 | ↓ electrochemistry, magnetochemistry |
| ↑ | 541.372 | ↓ electrolytic solutions |
| ↑ | 541.378 | ↓ magnetochemistry |
| ↑ | 541.38 | ↓ radiochemistry |
| ↑ | 541.388 | ↓ isotopes |
| ↑ | 541.39 | ↓ chemical reactions |
| ↑ | 541.392 | ↓ chemical equilibrium |
| ↑ | 541.393 | ↓ oxydo-reduction |
| ↑ | 541.394 | ↓ chemical kinetics |
| ↑ | 541.395 | ↓ catalysis |
| ↑ | 542 | ↓ laboratory techniques, computational chemistry |
| ↑ | 542.8 | ↓ auxiliary and electronic facilities, data processing |
| ↑ | 543 | ↓ analytical chemistry |
| ↑ | 543.08 | ↓ spectroscopy, chromatography [outdated number] |
| ↑ | 543.1 | ↓ bromatological analysis |
| ↑ | 543.17 | ↓ organic analytical chemistry |
| ↑ | 543.2 | ↓ classical methods |
| ↑ | 543.22 | ↓ microchemistry |
| ↑ | 543.24 | ↓ volumetric analysis |
| ↑ | 543.26 | ↓ thermal analysis |
| ↑ | 543.4 | ↓ electrochemical analysis |
| ↑ | 543.5 | ↓ optical spectroscopy |
| ↑ | 543.6 | ↓ non-optical spectroscopy |
| ↑ | 543.63 | ↓ radiochemical analysis |
| ↑ | 543.8 | ↓ chromatography |
| ↑ | 543.84 | ↓ liquid-mobile phase chromatography |
| ↑ | 543.85 | ↓ gas chromatography |
| ↑ | 546 | ↓ inorganic chemistry |
| ↑ | 546.2 | ↓ hydrogen and its compounds |
| ↑ | 546.24 | ↓ acids |
| ↑ | 546.3 | ↓ metals, metallic compounds, alloys |
| ↑ | 546.34 | ↓ salts |
| ↑ | 546.4 | ↓ group 3, lantanids, actinids |
| ↑ | 546.41 | ↓ lantanids, rare earths |
| ↑ | 546.42 | ↓ actinids |
| ↑ | 546.5 | ↓ groups 4 to 7: of titanium, vanadium, chrome, manganese |
| ↑ | 546.6 | ↓ groups 8 to 14 |
| ↑ | 546.625 | ↓ nickel |
| ↑ | 546.671 | ↓ boron |
| ↑ | 546.7 | ↓ groups 15 to 18: chalcogens, alogens, noble gases |
| ↑ | 546.8 | ↓ periodic law and table |
| ↑ | 547 | ↓ organic chemistry |
| ↑ | 547.002 | ↓ techniques, devices, equipment |
| ↑ | 547.007 | ↓ exercices and auxiliary materials in organic chemistry |
| ↑ | 547.01 | ↓ hydrocarbons |
| ↑ | 547.02 | ↓ halogenated compounds |
| ↑ | 547.04 | ↓ nitrogen compounds |
| ↑ | 547.05 | ↓ organometallic compounds |
| ↑ | 547.06 | ↓ sulphur organic compounds |
| ↑ | 547.1 | ↓ physical and theoretical organic chemistry |
| ↑ | 547.122 | ↓ molecular structures, stereochemistry, bonds |
| ↑ | 547.128 | ↓ quantum chemistry |
| ↑ | 547.135 | ↓ photochemistry |
| ↑ | 547.137 | ↓ electrochemistry, magnetochemistry |
| ↑ | 547.2 | ↓ organic reactions |
| ↑ | 547.23 | ↓ oxydoreduction |
| ↑ | 547.28 | ↓ polymerization |
| ↑ | 547.4 | ↓ aliphatic compounds |
| ↑ | 547.41 | ↓ hydrocarbons |
| ↑ | 547.413 | ↓ acetylenes, alchines |
| ↑ | 547.5 | ↓ cyclic compounds |
| ↑ | 547.59 | ↓ heterocycles |
| ↑ | 547.593 | ↓ heteronitrogen compounds, clorophillae, diazines, imidazolos |
| ↑ | 547.6 | ↓ aromatic compounds |
| ↑ | 547.7 | ↓ macromolecules, polymers |
| ↑ | 547.71 | ↓ terpenes and essential oils |
| ↑ | 547.77 | ↓ lipids |
| ↑ | 547.78 | ↓ carbohydrates |
| ↑ | 547.8 | ↓ other organic substances |
| ↑ | 547.84 | ↓ elastomers, resins, lignin |
| ↑ | 547.86 | ↓ colourants and pigments |
| ↑ | 548 | ↓ crystallography |
| ↑ | 548.021 | ↓ formulas |
| ↑ | 548.3 | ↓ crystallochemistry |
| ↑ | 548.5 | ↓ crystallization |
| ↑ | 548.7 | ↓ mathematical crystallography |
| ↑ | 548.8 | ↓ physical and structural crystallography |
| ↑ | 548.81 | ↓ structural crystallography |
| ↑ | 548.83 | ↓ diffractometric methods |
| ↑ | 548.9 | ↓ optical crystallography |
| ↑ | 549 | ↓ mineralogy |
| ↑ | 549.1 | ↓ determinative mineralogy |
| ↑ | 549.6 | ↓ silicates |
| ↑ | 549.67 | ↓ phyllosilicates, clay minerals |
| ↑ | 549.9 | ↓ geography of minerals |
| | 550 | ↓ Earth science |
| ↑ | 550 | ↓ Earth science in general |
| ↑ | 550.11 | ↓ models in Earth science |
| ↑ | 550.28 | ↓ remote sensing |
| ↑ | 551 | ↓ geology and hydrology |
| ↑ | 551.023 | ↓ geologist as a profession |
| ↑ | 551.072 | ↓ geological survey |
| ↑ | 551.1 | ↓ Earth structure and properties |
| ↑ | 551.2 | ↓ volcanoes, earthquakes, thermal water and gases |
| ↑ | 551.21 | ↓ volcanology |
| ↑ | 551.22 | ↓ seismology, earthquakes |
| ↑ | 551.23 | ↓ thermal water and gases |
| ↑ | 551.3 | ↓ surface processes, rock fall, landslides |
| ↑ | 551.303 | ↓ sediment transportation and deposit |
| ↑ | 551.31 | ↓ glaciology |
| ↑ | 551.4 | ↓ geomorphology and hydrosphere |
| ↑ | 551.41 | ↓ geomorphology |
| ↑ | 551.46 | ↓ oceanography, underwater geology |
| ↑ | 551.48 | ↓ hydrology, surface waters |
| ↑ | 551.483 | ↓ rivers, streams |
| ↑ | 551.489 | ↓ floods |
| ↑ | 551.49 | ↓ hydrogeology, ground waters |
| ↑ | 551.5 | ↓ meteorology |
| ↑ | 551.6 | ↓ climatology, weather |
| ↑ | 551.7 | ↓ historical geology |
| ↑ | 551.8 | ↓ structural geology |
| ↑ | 551.9 | ↓ geochemistry |
| ↑ | 552 | ↓ petrology |
| ↑ | 552.06 | ↓ rock composition, structure and analysis |
| ↑ | 552.1 | ↓ igneous rocks |
| ↑ | 552.4 | ↓ metamorphic rocks |
| ↑ | 552.5 | ↓ sedimentary rocks |
| ↑ | 553 | ↓ economic and applied geology, layers |
| ↑ | 553.2 | ↓ hydrocarbons, fuels |
| ↑ | 553.6 | ↓ clays, sands, salts |
| ↑ | 553.7 | ↓ water |
| ↑ | 554 | ↓ Earth sciences of Europe |
| ↑ | 554.5 | ↓ Earth sciences of Italy |
| ↑ | 554.51 | ↓ Earth sciences of Northern Italy and the Alps |
| ↑ | 555 | ↓ Earth sciences of Asia |
| ↑ | 556 | ↓ Earth sciences of Africa |
| ↑ | 557 | ↓ Earth sciences of Northern America |
| ↑ | 558 | ↓ Earth sciences of Southern America |
| ↑ | 559 | ↓ Earth sciences of Antarctica and islands |
| | 560 | ↓ palaeontology |
| ↑ | 560 | ↓ palaeobiology in general |
| ↑ | 561 | ↓ palaeobotany and micropalaeontology |
| ↑ | 562 | ↓ invertebrate palaeontology |
| ↑ | 567 | ↓ fossil fishes, amphibians and reptiles |
| ↑ | 568 | ↓ fossil birds |
| ↑ | 569 | ↓ fossil mammals |
| ↑ | 569.9 | ↓ fossil hominids |
| | 570 | ↓ biology |
| ↑ | 570 | ↓ general biology |
| ↑ | 570.12 | ↓ biological systematics |
| ↑ | 570.28 | ↓ biological techniques and equipments |
| ↑ | 570.285 | ↓ bioinformatics, computational biology |
| ↑ | 570.9 | ↓ history of biology |
| ↑ | 570.92 | ↓ biologists |
| ↑ | 571 | ↓ physiology in general |
| ↑ | 571.1 | ↓ animal physiology |
| ↑ | 571.2 | ↓ plant and microrganism physiology |
| ↑ | 571.3 | ↓ comparative anatomy |
| ↑ | 571.31 | ↓ animal anatomy |
| ↑ | 571.5 | ↓ animal histology |
| ↑ | 571.6 | ↓ cell biology |
| ↑ | 571.63 | ↓ anatomy, morphology, biophysics, cell culture |
| ↑ | 571.64 | ↓ membranes |
| ↑ | 571.65 | ↓ cytoplasm |
| ↑ | 571.8 | ↓ reproduction, development, embryology |
| ↑ | 571.9 | ↓ general pathology |
| ↑ | 571.93 | ↓ diseases in general |
| ↑ | 571.96 | ↓ immunology |
| ↑ | 571.978 | ↓ carcinogenesis |
| ↑ | 571.99 | ↓ parassitology |
| ↑ | 572 | ↓ biochemistry |
| ↑ | 572.2 | ↓ biochemistry of plants and microorganisms |
| ↑ | 572.4 | ↓ metabolism |
| ↑ | 572.49 | ↓ fermentation |
| ↑ | 572.5 | ↓ various chemical substances |
| ↑ | 572.51 | ↓ bioinorganic chemistry, trace elements |
| ↑ | 572.56 | ↓ carbohydrates |
| ↑ | 572.58 | ↓ vitamins |
| ↑ | 572.6 | ↓ proteins |
| ↑ | 572.65 | ↓ protein components |
| ↑ | 572.7 | ↓ enzymes |
| ↑ | 572.8 | ↓ molecular biology, biochemical genetics |
| ↑ | 572.86 | ↓ DNA, genomics |
| ↑ | 573 | ↓ specific systems |
| ↑ | 573.4 | ↓ endocrinology |
| ↑ | 576 | ↓ genetics, evolution |
| ↑ | 576.5 | ↓ general genetics |
| ↑ | 576.54 | ↓ variation, mutation |
| ↑ | 576.58 | ↓ population genetics |
| ↑ | 576.8 | ↓ evolution |
| ↑ | 576.83 | ↓ origins of life |
| ↑ | 577 | ↓ ecology |
| ↑ | 577.6 | ↓ hydrobiology, freshwater ecology |
| ↑ | 577.8 | ↓ synecology, population biology |
| ↑ | 577.85 | ↓ symbiosis and parasitism |
| ↑ | 578 | ↓ natural history |
| ↑ | 578.62 | ↓ alien, invasive species |
| ↑ | 578.7 | ↓ organisms of special environments, biodiversity |
| ↑ | 578.77 | ↓ marine biology |
| ↑ | 579 | ↓ microbiology, fungus, algae |
| ↑ | 579.2 | ↓ virology |
| ↑ | 579.3 | ↓ prokaryotes, bacteria |
| ↑ | 579.4 | ↓ protozoans |
| ↑ | 579.5 | ↓ fungus, mycology |
| ↑ | 579.52 | ↓ |
| ↑ | 579.53 | ↓ |
| ↑ | 579.54 | ↓ |
| ↑ | 579.55 | ↓ |
| ↑ | 579.56 | ↓ |
| ↑ | 579.563 | ↓ |
| ↑ | 579.57 | ↓ |
| ↑ | 579.59 | ↓ |
| ↑ | 579.6 | ↓ mushrooms |
| ↑ | 579.7 | ↓ |
| ↑ | 579.8 | ↓ algae |
| | 580 | ↓ botany |
| ↑ | 580 | ↓ botany in general |
| ↑ | 580.12 | ↓ systematic botany |
| ↑ | 580.14 | ↓ plant names and terminology |
| ↑ | 580.73 | ↓ botanical gardens |
| ↑ | 580.74 | ↓ botanical museums, herbariums |
| ↑ | 580.9 | ↓ history of botany |
| ↑ | 581 | ↓ plant characters, genetics and ecology |
| ↑ | 581.092 | ↓ botanists |
| ↑ | 581.3 | ↓ plant genetics and physiology |
| ↑ | 581.6 | ↓ plant uses and effects |
| ↑ | 581.634 | ↓ medicinal plants |
| ↑ | 581.7 | ↓ plants of special environments, plant ecology |
| ↑ | 581.753 | ↓ mountain, Alpine plants |
| ↑ | 581.9 | ↓ phytogeography, floras |
| ↑ | 581.94 | ↓ plants of Europe |
| ↑ | 581.941 | ↓ plants of Ireland, UK in general, Scotland |
| ↑ | 581.942 | ↓ plants of England and Wales |
| ↑ | 581.943 | ↓ plants of Germany and Central Europe |
| ↑ | 581.9436 | ↓ plants of Austria |
| ↑ | 581.9437 | ↓ plants of Czech Rep. and Slovakia |
| ↑ | 581.9438 | ↓ plants of Poland |
| ↑ | 581.9439 | ↓ plants of Hungary |
| ↑ | 581.944 | ↓ plants of France |
| ↑ | 581.945 | ↓ plants of Italy |
| ↑ | 581.9451 | ↓ plants of NW Italy |
| ↑ | 581.9452 | ↓ plants of Lombardy |
| ↑ | 581.94529 | ↓ plants of Pavia province |
| ↑ | 581.9453 | ↓ plants of NE Italy |
| ↑ | 581.9454 | ↓ plants of Emilia-Romagna |
| ↑ | 581.9455 | ↓ plants of Tuscany |
| ↑ | 581.9456 | ↓ plants of central Italy |
| ↑ | 581.9457 | ↓ plants of continental southern Italy |
| ↑ | 581.9458 | ↓ plants of Sicily |
| ↑ | 581.9459 | ↓ plants of Sardinia |
| ↑ | 581.946 | ↓ plants of Spain and Portugal |
| ↑ | 581.947 | ↓ plants of Russia, Ukraine and Baltic countries |
| ↑ | 581.948 | ↓ plants of Scandinavia and Finland |
| ↑ | 581.949 | ↓ plants of other European countries |
| ↑ | 581.9492 | ↓ plants of Netherlands |
| ↑ | 581.9493 | ↓ plants of Belgium and Luxembourg |
| ↑ | 581.9494 | ↓ plants of Switzerland |
| ↑ | 581.9495 | ↓ plants of Greece |
| ↑ | 581.9497 | ↓ plants of former Yugoslavia |
| ↑ | 581.9498 | ↓ plants of Romania |
| ↑ | 581.95 | ↓ plants of Asia |
| ↑ | 581.951 | ↓ plants of China and Korea |
| ↑ | 581.9519 | ↓ plants of Korea |
| ↑ | 581.952 | ↓ plants of Japan |
| ↑ | 581.955 | ↓ plants of Iran |
| ↑ | 581.96 | ↓ plants of Africa |
| ↑ | 581.966 | ↓ plants of western Africa |
| ↑ | 581.967 | ↓ plants of central Africa |
| ↑ | 581.968 | ↓ plants of southern Africa |
| ↑ | 581.97 | ↓ plants of North and Central America |
| ↑ | 581.98 | ↓ plants of South America |
| ↑ | 581.985 | ↓ plants of Peru |
| ↑ | 581.987 | ↓ plants of Venezuela |
| ↑ | 581.99 | ↓ plants of Oceania |
| ↑ | 582 | ↓ phanerogams, spermatophytes |
| ↑ | 582.0463 | ↓ flowers and their parts |
| ↑ | 582.13 | ↓ flowers |
| ↑ | 582.16 | ↓ trees |
| ↑ | 586 | ↓ cryptogams |
| | 590 | ↓ zoology |
| ↑ | 590 | ↓ zoology in general |
| ↑ | 591 | ↓ animal biology |
| ↑ | 591.3 | ↓ animal genetics |
| ↑ | 591.5 | ↓ ethology, animal behaviour |
| ↑ | 591.513 | ↓ animal intelligence |
| ↑ | 591.59 | ↓ animal communication |
| ↑ | 592 | ↓ lower invertebrates, worms |
| ↑ | 594 | ↓ molluscs |
| ↑ | 595 | ↓ entomology, arthropods |
| ↑ | 595.7 | ↓ insects |
| ↑ | 596 | ↓ chordates, vertebrates in general |
| ↑ | 597 | ↓ cold-blooded vertebrates, fish |
| ↑ | 597.9 | ↓ amphibians and reptiles |
| ↑ | 598 | ↓ birds |
| ↑ | 599 | ↓ mammals |
| ↑ | 599.3 | ↓ rodents, insectivores, lagomorphs |
| ↑ | 599.6 | ↓ ungulates |
| ↑ | 599.7 | ↓ carnivores |
| ↑ | 599.8 | ↓ primates, monkeys |
| ↑ | 599.9 | ↓ humans, physical anthropology |
| ↑ | 599.93 | ↓ human genetics and evolution |
| ↑ | 599.935 | ↓ human genetics |
| | 600 | ↓ applied sciences |
| | 600 | ↓ technology |
| ↑ | 600 | ↓ applied sciences in general |
| ↑ | 602 | ↓ handbooks |
| ↑ | 603 | ↓ technical dictionaries and encyclopaedias |
| ↑ | 604 | ↓ technical drawing |
| ↑ | 607 | ↓ education of technicians and engineers, research |
| ↑ | 607.2 | ↓ technological research, statistical methods |
| ↑ | 607.4529 | ↓ education of technicians and engineers in Pavia |
| ↑ | 608 | ↓ patents |
| ↑ | 609 | ↓ history of technology |
| | 610 | ↓ medicine |
| ↑ | 610 | ↓ medicine in general |
| ↑ | 610.15 | ↓ biomedical models |
| ↑ | 610.153 | ↓ medical physics |
| ↑ | 610.28 | ↓ biomedical instrumentation |
| ↑ | 610.285 | ↓ computer applications for medicine |
| ↑ | 610.3 | ↓ medical dictionaries |
| ↑ | 610.6 | ↓ medical professions |
| ↑ | 610.69 | ↓ medical staff |
| ↑ | 610.72 | ↓ medical statistics |
| ↑ | 610.73 | ↓ nursing |
| ↑ | 610.9 | ↓ history of medicine |
| ↑ | 611 | ↓ human anatomy |
| ↑ | 611.0022 | ↓ anatomic atlases |
| ↑ | 611.018 | ↓ human cytology and histology |
| ↑ | 611.1 | ↓ anatomy of the circulatory system |
| ↑ | 611.2 | ↓ anatomy of the respiratory system |
| ↑ | 611.3 | ↓ anatomy of the digestive system |
| ↑ | 611.6 | ↓ anatomy of the urinary system |
| ↑ | 611.7 | ↓ anatomy of the muscular and skeletal system |
| ↑ | 611.8 | ↓ nervous system anatomy |
| ↑ | 611.85 | ↓ ear anatomy |
| ↑ | 611.9 | ↓ regional and topography anatomy |
| ↑ | 611.91 | ↓ head anatomy |
| ↑ | 612 | ↓ human physiology |
| ↑ | 612.01 | ↓ biophysics and biochemistry |
| ↑ | 612.014 | ↓ biophysics, radiobiology |
| ↑ | 612.015 | ↓ medical biological chemistry |
| ↑ | 612.1 | ↓ physiology of circulatory system |
| ↑ | 612.2 | ↓ pneumology |
| ↑ | 612.3 | ↓ physiology of digestive system |
| ↑ | 612.4 | ↓ endocrine system |
| ↑ | 612.405 | ↓ hormones |
| ↑ | 612.6 | ↓ human reproduction and growth |
| ↑ | 612.62 | ↓ female reproductive system |
| ↑ | 612.63 | ↓ pregnancy and childbirth |
| ↑ | 612.64 | ↓ human embryology |
| ↑ | 612.7 | ↓ bones, muscles and movement, biomechanics |
| ↑ | 612.76 | ↓ locomotion, physical exercise, rest |
| ↑ | 612.78 | ↓ voice and language |
| ↑ | 612.8 | ↓ nervous system physiology |
| ↑ | 612.804 | ↓ neurochemistry, cerebrospinal fluid |
| ↑ | 612.846 | ↓ movement of the eyes |
| ↑ | 612.85 | ↓ physiology of ear |
| ↑ | 612.858 | ↓ internal ear |
| ↑ | 613 | ↓ hygiene, health |
| ↑ | 613.1 | ↓ environmental factors of health |
| ↑ | 613.2 | ↓ nutrition |
| ↑ | 613.5 | ↓ hygiene in artificial environments |
| ↑ | 613.6 | ↓ personal safety and facets of health |
| ↑ | 613.62 | ↓ occupational medicine |
| ↑ | 613.7 | ↓ physical fitness |
| ↑ | 613.71 | ↓ physical exercise and sport activities |
| ↑ | 613.8 | ↓ abuse of substances |
| ↑ | 613.81 | ↓ alcoholism |
| ↑ | 613.83 | ↓ narcotics,
hallucinogens, psychedelics, cannabis |
| ↑ | 613.9 | ↓ sex and reproduction hygiene |
| ↑ | 613.94 | ↓ birth control |
| ↑ | 614 | ↓ public health |
| ↑ | 614.1 | ↓ legal medicine, forensic pathology |
| ↑ | 614.17 | ↓ forensic anthropology and entomology |
| ↑ | 614.4 | ↓ disease incidence and prevention |
| ↑ | 615 | ↓ pharmacology, terapeutics |
| ↑ | 615.1 | ↓ drugs |
| ↑ | 615.10033 | ↓ drugs and economics |
| ↑ | 615.11 | ↓ pharmacopoeia |
| ↑ | 615.19 | ↓ pharmaceutical chemistry and technology |
| ↑ | 615.1901 | ↓ pharmaceutical chemical analysis |
| ↑ | 615.19C | ↓ pharmaceutical chemistry |
| ↑ | 615.19T | ↓ pharmaceutical technology |
| ↑ | 615.3 | ↓ organic drugs |
| ↑ | 615.321 | ↓ plant-derived drugs, phytotherapy, pharmacognosis |
| ↑ | 615.328 | ↓ vitamins |
| ↑ | 615.329 | ↓ drugs from microorganisms, fungi, algae, antibiotics |
| ↑ | 615.36 | ↓ animal-derived drugs, hormones |
| ↑ | 615.4 | ↓ recipe preparation |
| ↑ | 615.5 | ↓ therapeutics |
| ↑ | 615.6 | ↓ administering methods |
| ↑ | 615.7 | ↓ pharmacokinetics |
| ↑ | 615.78 | ↓ drugs active on nervous system |
| ↑ | 615.8 | ↓ therapies, radio- and chemiotherapy |
| ↑ | 615.89 | ↓ gene therapy, acupuncture and other therapies |
| ↑ | 615.9 | ↓ toxicology
|
| ↑ | 615.902 | ↓ industrial toxicology |
| ↑ | 616 | ↓ pathology, clinics, internal medicine |
| ↑ | 616.007 | ↓ studying, admittance exams |
| ↑ | 616.01 | ↓ medical microbiology |
| ↑ | 616.02 | ↓ special subjects of diseases |
| ↑ | 616.025 | ↓ urgent diseases |
| ↑ | 616.042 | ↓ medical genetics |
| ↑ | 616.047 | ↓ inflammation |
| ↑ | 616.07 | ↓ physiopathology |
| ↑ | 616.075 | ↓ diagnosis and prognosis, bioimages |
| ↑ | 616.0756 | ↓ chemical diagnosis, clinical chemistry |
| ↑ | 616.079 | ↓ immunology |
| ↑ | 616.1 | ↓ cardiovascular diseases |
| ↑ | 616.12 | ↓ cardiology |
| ↑ | 616.123 | ↓ coronariopatias, myocardial infarction |
| ↑ | 616.128 | ↓ arrhythmia |
| ↑ | 616.13 | ↓ aterosclerosis |
| ↑ | 616.132 | ↓ hypertension |
| ↑ | 616.136 | ↓ arteriosclerosis |
| ↑ | 616.15 | ↓ hematology |
| ↑ | 616.2 | ↓ pneumology |
| ↑ | 616.21 | ↓ rhinology |
| ↑ | 616.212 | ↓ paranasal sinuses deseases |
| ↑ | 616.22 | ↓ laryngology |
| ↑ | 616.3 | ↓ gastroenterology |
| ↑ | 616.31 | ↓ mouth and throat deseases |
| ↑ | 616.39 | ↓ obesity |
| ↑ | 616.4 | ↓ endocrinology |
| ↑ | 616.5 | ↓ dermatology |
| ↑ | 616.6 | ↓ nephrology |
| ↑ | 616.7 | ↓ orthopedics |
| ↑ | 616.72 | ↓ arthritis, rheumatism |
| ↑ | 616.723 | ↓ rheumatism |
| ↑ | 616.8 | ↓ neurology |
| ↑ | 616.84 | ↓ symptoms of neurological deseases |
| ↑ | 616.841 | ↓ dizziness and vertigo |
| ↑ | 616.855 | ↓ speech and language disorders |
| ↑ | 616.89 | ↓ psychiatry |
| ↑ | 616.891 | ↓ therapy, drug therapy |
| ↑ | 616.9 | ↓ oncology and infectuous diseases |
| ↑ | 616.91 | ↓ viral diseases |
| ↑ | 616.92 | ↓ bacterial diseases |
| ↑ | 616.96 | ↓ parasitosis and mycosis |
| ↑ | 616.969 | ↓ mycosis, fungal diseases |
| ↑ | 616.97 | ↓ allergology |
| ↑ | 616.973 | ↓ contact allergies |
| ↑ | 616.98 | ↓ environmental and climate diseases |
| ↑ | 616.99 | ↓ tumours |
| ↑ | 616.992 | ↓ neoplasms |
| ↑ | 616.993 | ↓ benign neoplasm |
| ↑ | 616.994 | ↓ cancers, chemiotherapy |
| ↑ | 616.9941 | ↓ cardiac tumors |
| ↑ | 616.99422 | ↓ larynx tumors |
| ↑ | 616.99465 | ↓ female cancers |
| ↑ | 616.995 | ↓ tuberculosis |
| ↑ | 617 | ↓ surgery, prostheses |
| ↑ | 617.05 | ↓ surgical tools and techniques |
| ↑ | 617.1 | ↓ traumatology |
| ↑ | 617.3 | ↓ orthopedics |
| ↑ | 617.4 | ↓ surgery of specific systems |
| ↑ | 617.41 | ↓ cardiovascular surgery |
| ↑ | 617.47 | ↓ orthopedic surgery |
| ↑ | 617.48 | ↓ neural surgery |
| ↑ | 617.5 | ↓ specific organs surgery |
| ↑ | 617.51 | ↓ head surgery |
| ↑ | 617.52 | ↓ face surgery |
| ↑ | 617.522 | ↓ oral region surgery |
| ↑ | 617.523 | ↓ nose surgery |
| ↑ | 617.53 | ↓ neck surgery |
| ↑ | 617.533 | ↓ larynx and trachea surgery |
| ↑ | 617.6 | ↓ dentistry |
| ↑ | 617.7 | ↓ ophthalmology |
| ↑ | 617.8 | ↓ deafness |
| ↑ | 617.8059 | ↓ ear deseases |
| ↑ | 617.8075 | ↓ audiometry |
| ↑ | 617.84 | ↓ medium ears deseases |
| ↑ | 617.88 | ↓ internal ears deseases |
| ↑ | 617.882 | ↓ labyrinthitis |
| ↑ | 617.89 | ↓ hearing correction |
| ↑ | 617.9 | ↓ surgery techniques |
| ↑ | 617.952 | ↓ plastic surgery |
| ↑ | 617.96 | ↓ anaesthetic |
| ↑ | 618 | ↓ gynecology, obstetrics, pediatrics, geriatrics |
| ↑ | 618.1 | ↓ gynecology |
| ↑ | 618.1059 | ↓ gynecological surgical techniques |
| ↑ | 618.1075 | ↓ diagnosis and prognosis |
| ↑ | 618.10757 | ↓ radiological diagnosis |
| ↑ | 618.178 | ↓ sterility |
| ↑ | 618.2 | ↓ obstetrics |
| ↑ | 618.3 | ↓ diseases and pregnancy complications |
| ↑ | 618.32 | ↓ fetal disorders |
| ↑ | 618.4 | ↓ childbirth |
| ↑ | 618.9 | ↓ pediatrics and geriatrics |
| ↑ | 618.92 | ↓ pediatrics |
| ↑ | 618.922 | ↓ pediatric diseases of the respiratory tract |
| ↑ | 618.928 | ↓ pediatric diseases of nervous system |
| ↑ | 618.929 | ↓ contagious diseases |
| ↑ | 618.97 | ↓ geriatrics |
| | 620 | ↓ engineering |
| ↑ | 620 | ↓ engineering in general |
| ↑ | 620.0042 | ↓ engineering design, AutoCAD |
| ↑ | 620.009 | ↓ history of engineering |
| ↑ | 620.1 | ↓ mechanics and materials |
| ↑ | 620.11 | ↓ materials, tests, alteration |
| ↑ | 620.112 | ↓ material properties, tests |
| ↑ | 620.13 | ↓ walling materials |
| ↑ | 620.14 | ↓ ceramics, bricks and analogous materials |
| ↑ | 620.16 | ↓ metals |
| ↑ | 620.17 | ↓ iron, steel |
| ↑ | 620.19 | ↓ other materials, polymers |
| ↑ | 620.2 | ↓ applied acoustics |
| ↑ | 620.3 | ↓ mechanic vibration |
| ↑ | 620.4 | ↓ fine particle and surface technology |
| ↑ | 620.5 | ↓ nanotechnology |
| ↑ | 620.8 | ↓ ergonomy |
| ↑ | 621 | ↓ applied physics |
| ↑ | 621.2 | ↓ hydraulic machinery |
| ↑ | 621.3 | ↓ electrotechnics |
| ↑ | 621.31 | ↓ electrical energy |
| ↑ | 621.312 | ↓ generation, transformation, accumulation |
| ↑ | 621.317 | ↓ control devices |
| ↑ | 621.319 | ↓ transmission, electrical plants |
| ↑ | 621.32 | ↓ electric enlightenment |
| ↑ | 621.36 | ↓ optical engineering |
| ↑ | 621.366 | ↓ lasers |
| ↑ | 621.367 | ↓ technical photography, photoptics |
| ↑ | 621.369 | ↓ fiber, integrated, nonlinear optics |
| ↑ | 621.37 | ↓ tests and measures of electrical quantities |
| ↑ | 621.38 | ↓ electronic and communication engineering |
| ↑ | 621.381 | ↓ electronics |
| ↑ | 621.381045 | ↓ photodetectors |
| ↑ | 621.3813 | ↓ microwaves |
| ↑ | 621.3815 | ↓ components and circuits, CMOSs |
| ↑ | 621.38152 | ↓ semiconductors |
| ↑ | 621.38153 | ↓ circuits for special functions |
| ↑ | 621.38154 | ↓ photoelectric, test and measure components |
| ↑ | 621.3817 | ↓ microelectronics |
| ↑ | 621.382 | ↓ communication engineering |
| ↑ | 621.3822 | ↓ signal processing |
| ↑ | 621.3824 | ↓ antennas and propagation |
| ↑ | 621.3825 | ↓ relays, satellites |
| ↑ | 621.3827 | ↓ optical communication and fibers |
| ↑ | 621.384 | ↓ radios, radars |
| ↑ | 621.3841 | ↓ radio transmission, components, systems |
| ↑ | 621.3848 | ↓ radars |
| ↑ | 621.39 | ↓ computer engineering |
| ↑ | 621.395 | ↓ logical networks, VLSI |
| ↑ | 621.398 | ↓ interfaces, communication, devices |
| ↑ | 621.4 | ↓ heat engineering, engines |
| ↑ | 621.45 | ↓ wind engines |
| ↑ | 621.46 | ↓ electric motors |
| ↑ | 621.47 | ↓ solar energy engineering |
| ↑ | 621.48 | ↓ nuclear engineering |
| ↑ | 621.483 | ↓ nuclear reactors and power plants |
| ↑ | 621.5 | ↓ pneumatics, void, low temperatures |
| ↑ | 621.8 | ↓ machinery engineering |
| ↑ | 621.89 | ↓ tribology |
| ↑ | 621.9 | ↓ tools |
| ↑ | 622 | ↓ mining engineering |
| ↑ | 622.1 | ↓ geophysical prospecting
|
| ↑ | 622.2 | ↓ excavation techniques |
| ↑ | 622.3 | ↓ mining special minerals |
| ↑ | 622.33 | ↓ hydrocarbons excavation |
| ↑ | 623 | ↓ military and naval engineering |
| ↑ | 624 | ↓ civil engineering |
| ↑ | 624.072 | ↓ research and dissertations in civil engineering |
| ↑ | 624.09 | ↓ history of civil engineering |
| ↑ | 624.1 | ↓ structural engineering and underground building technology |
| ↑ | 624.15 | ↓ building technology |
| ↑ | 624.151 | ↓ geotechnics, soil mechanics |
| ↑ | 624.1513 | ↓ rock and soil mechanics |
| ↑ | 624.154 | ↓ pile foundations |
| ↑ | 624.17 | ↓ structural systems, building science |
| ↑ | 624.171 | ↓ structural analysis |
| ↑ | 624.176 | ↓ seismic engineering |
| ↑ | 624.177 | ↓ structure design |
| ↑ | 624.1771 | ↓ structural design |
| ↑ | 624.1772 | ↓ |
| ↑ | 624.1776 | ↓ |
| ↑ | 624.18 | ↓ materials |
| ↑ | 624.182 | ↓ metal structures: iron, steel, aluminium |
| ↑ | 624.183 | ↓ masonry structures |
| ↑ | 624.1834 | ↓ concrete, reinforced concrete |
| ↑ | 624.184 | ↓ wooden structures |
| ↑ | 624.19 | ↓ underground building, tunnels |
| ↑ | 624.2 | ↓ bridges |
| ↑ | 625 | ↓ railway and road engineering |
| ↑ | 625.1 | ↓ railways |
| ↑ | 625.7 | ↓ roads |
| ↑ | 627 | ↓ hydraulic engineering |
| ↑ | 627.1 | ↓ inland waters |
| ↑ | 627.12 | ↓ streams |
| ↑ | 627.13 | ↓ canals |
| ↑ | 627.14 | ↓ lakes |
| ↑ | 627.2 | ↓ harbours |
| ↑ | 627.5 | ↓ land improvement and irrigation |
| ↑ | 627.54 | ↓ drainage |
| ↑ | 627.8 | ↓ dams and reservoirs |
| ↑ | 628 | ↓ sanitary engineering, sewers, wastewater |
| ↑ | 628.1 | ↓ water provision |
| ↑ | 628.16 | ↓ analysis, treatment, countermeasures to pollution |
| ↑ | 628.2 | ↓ sewers |
| ↑ | 628.3 | ↓ wastewater treatment and disposal |
| ↑ | 628.4 | ↓ trash |
| ↑ | 628.5 | ↓ pollution control techniques |
| ↑ | 628.53 | ↓ air pollution |
| ↑ | 628.9 | ↓ fire prevention |
| ↑ | 629 | ↓ transport engineering, automatic controls |
| ↑ | 629.1 | ↓ aerospace engineering |
| ↑ | 629.2 | ↓ land vehicles |
| ↑ | 629.4 | ↓ astronautics |
| ↑ | 629.8 | ↓ automatic control engineering |
| ↑ | 629.83 | ↓ closed-ring systems, feedback |
| ↑ | 629.89 | ↓ computer control, robotics |
| | 630 | ↓ agriculture |
| ↑ | 630 | ↓ agriculture in general |
| ↑ | 630.91 | ↓ regional and tropical agriculture
|
| ↑ | 631 | ↓ techniques, tools, materials |
| ↑ | 631.4 | ↓ soil science |
| ↑ | 631.41 | ↓ soil chemistry |
| ↑ | 631.5 | ↓ cultivation and harvesting |
| ↑ | 631.52 | ↓ seed and variety production, agricultural genetics |
| ↑ | 631.53 | ↓ plant breeding |
| ↑ | 632 | ↓ plant pathology, biological and chemical control |
| ↑ | 632.32 | ↓ bacterial diseases of plants |
| ↑ | 632.7 | ↓ noxious insects, agricultural entomology |
| ↑ | 632.9 | ↓ pesticides |
| ↑ | 632.95 | ↓ pesticides |
| ↑ | 633 | ↓ field and plantation crops |
| ↑ | 633.1 | ↓ grain growth |
| ↑ | 633.5 | ↓ fiber cultivations |
| ↑ | 633.7 | ↓ cultivation of alkaloid plants, tobacco, cacao |
| ↑ | 634 | ↓ arboriculture, fruit farming |
| ↑ | 634.8 | ↓ viticulture |
| ↑ | 635 | ↓ horticulture, vegetables, gardening |
| ↑ | 635.9 | ↓ floriculture, ornamental plants |
| ↑ | 635.93 | ↓ groups of flowers and ornamental plants |
| ↑ | 635.933 | ↓ ornamental dicotyledons |
| ↑ | 635.93335 | ↓ papaveraceae |
| ↑ | 635.93364 | ↓ Rosales, rose |
| ↑ | 635.93372 | ↓ Geraniales, pelargonium |
| ↑ | 635.93392 | ↓ Cornales, hortensias |
| ↑ | 635.93395 | ↓ Lamiids, gentians, jasmines |
| ↑ | 635.93398 | ↓ campanulids, asteraceae |
| ↑ | 635.934 | ↓ ornamental monocotyledons |
| ↑ | 635.9346 | ↓ Liliales |
| ↑ | 635.9347 | ↓ Asparagales, orchids |
| ↑ | 635.9393 | ↓ Ericales |
| ↑ | 636 | ↓ husbandry, breeding |
| ↑ | 639 | ↓ hunting, fishing, conservation |
| ↑ | 639.2 | ↓ commercial fishing |
| ↑ | 639.9 | ↓ conservation |
| | 640 | ↓ home management, food |
| ↑ | 641 | ↓ food, hunting and fishing |
| | 650 | ↓ business, management |
| ↑ | 650 | ↓ management and auxiliary services |
| ↑ | 657 | ↓ accounting |
| ↑ | 658 | ↓ organization and management |
| ↑ | 658.4 | ↓ executive management |
| ↑ | 658.401 | ↓ planning, control |
| ↑ | 658.403 | ↓ decisions, information management |
| ↑ | 658.404 | ↓ project management |
| ↑ | 658.5 | ↓ production, quality control
|
| ↑ | 658.8 | ↓ distribution, sale, marketing, e-business |
| | 660 | ↓ applied chemistry, food technology |
| ↑ | 660 | ↓ laboratory techniques, biotechnology in general |
| ↑ | 660.28 | ↓ chemical plants and activities |
| ↑ | 660.283 | ↓ equipment for processes, piping |
| ↑ | 660.284 | ↓ unit operations and processes |
| ↑ | 660.29 | ↓ applied physical chemistry, electrochemistry |
| ↑ | 660.6 | ↓ biotechnology |
| ↑ | 663 | ↓ beverage technology |
| ↑ | 663.2 | ↓ oenology |
| ↑ | 664 | ↓ food technology and microbiology |
| ↑ | 666 | ↓ ceramic and analogous technologies |
| ↑ | 666.1 | ↓ glass |
| ↑ | 666.7 | ↓ refractory materials, building clay products |
| ↑ | 667 | ↓ technology of cleaning, colour and upholstery |
| ↑ | 667.2 | ↓ dyes and pigments |
| ↑ | 668 | ↓ technology of other organic products |
| ↑ | 668.1 | ↓ surfactants |
| ↑ | 668.4 | ↓ plastics |
| ↑ | 668.5 | ↓ perfumes, cosmetics |
| ↑ | 668.6 | ↓ agricultural chemical substances, pesticides |
| ↑ | 668.9 | ↓ polymers |
| ↑ | 669 | ↓ metallurgy |
| ↑ | 669.9 | ↓ chemical and physical metallurgy |
| | 670 | ↓ manufacturing |
| ↑ | 671 | ↓ metal processing, galvanoplastics |
| ↑ | 677 | ↓ textiles |
| | 680 | ↓ manufacturing for special use |
| ↑ | 681 | ↓ precision instruments |
| ↑ | 681.2 | ↓ test and measurement tools, sensors |
| ↑ | 686 | ↓ printing |
| | 690 | ↓ building |
| ↑ | 690 | ↓ building in general |
| ↑ | 690.1 | ↓ structural elements |
| ↑ | 690.16 | ↓ floors, lofts |
| ↑ | 690.18 | ↓ openings, doors and windows |
| ↑ | 690.2 | ↓ activities on buildings |
| ↑ | 690.22 | ↓ safety actions in building |
| ↑ | 690.24 | ↓ maintenance and restoration |
| ↑ | 691 | ↓ building materials |
| ↑ | 693 | ↓ buildings of special materials and purposes |
| ↑ | 693.1 | ↓ stone |
| ↑ | 693.5 | ↓ concrete |
| ↑ | 693.7 | ↓ metals |
| ↑ | 693.8 | ↓ special purpose building |
| ↑ | 693.83 | ↓ thermal and acoustic isolation |
| ↑ | 693.85 | ↓ antiseismic and antiexplosion buildings |
| ↑ | 693.9 | ↓ other materials |
| ↑ | 693.96 | ↓ glass |
| ↑ | 693.97 | ↓ prefabricated materials |
| ↑ | 694 | ↓ wooden buildings |
| ↑ | 695 | ↓ roofing |
| ↑ | 696 | ↓ internal plants |
| ↑ | 697 | ↓ heating and conditioning |
| ↑ | 697.9 | ↓ air conditioning, climatization |
| ↑ | 698 | ↓ finishes |
| | 700 | ↓ architecture and arts |
| ↑ | 700 | ↓ the arts in general |
| ↑ | 701 | ↓ art philosophy ant theory |
| ↑ | 701.8 | ↓ colour, perspective, composition |
| ↑ | 702 | ↓ art techniques and materials |
| ↑ | 702.88 | ↓ maintenance and repair |
| ↑ | 704.9 | ↓ iconography |
| ↑ | 704.944 | ↓ iconography of architectures, urban views |
| ↑ | 704.949 | ↓ iconography of other themes |
| ↑ | 704.94978 | ↓ music iconography |
| ↑ | 704.949784 | ↓ music instrument iconography |
| ↑ | 707 | ↓ art education |
| ↑ | 707.4 | ↓ art expositions |
| ↑ | 708 | ↓ art galleries and collections |
| ↑ | 709 | ↓ art history |
| ↑ | 709.02 | ↓ Middle Ages arts |
| ↑ | 709.04 | ↓ twentieth century art |
| ↑ | 709.2 | ↓ artists |
| ↑ | 709.4 | ↓ European arts |
| ↑ | 709.45 | ↓ Italian art |
| | 710 | ↓ area planning, landscape |
| ↑ | 711 | ↓ area planning |
| ↑ | 711.01 | ↓ area planning theory |
| ↑ | 711.09 | ↓ history of area planning |
| ↑ | 711.1 | ↓ procedural and social aspects |
| ↑ | 711.3 | ↓ regional-scale planning |
| ↑ | 711.4 | ↓ municipal-scale planning, cities |
| ↑ | 711.409452 | ↓ Lombardy and Pavia planning |
| ↑ | 711.7 | ↓ transport facilities |
| ↑ | 712 | ↓ landscape architecture |
| ↑ | 712.5 | ↓ public parks |
| ↑ | 712.6 | ↓ proprietary parks |
| ↑ | 714 | ↓ water features in landscape |
| ↑ | 719 | ↓ wildlife landscapes |
| ↑ | 719.3 | ↓ nature reserves |
| ↑ | 719.32 | ↓ public parks and nature monuments |
| | 720 | ↓ architecture |
| ↑ | 720 | ↓ architecture in general |
| ↑ | 720.1 | ↓ architecture theory |
| ↑ | 720.22 | ↓ architecture illustrations and models |
| ↑ | 720.28 | ↓ restoration, architectural drawing |
| ↑ | 720.284 | ↓ architectural drawing |
| ↑ | 720.285 | ↓ digital architecture representation |
| ↑ | 720.286 | ↓ renovation, reuse |
| ↑ | 720.288 | ↓ conservation and restoration |
| ↑ | 720.42 | ↓ architecture for disabled people, accessibility |
| ↑ | 720.47 | ↓ architecture and environment |
| ↑ | 720.71 | ↓ teaching architecture |
| ↑ | 720.74 | ↓ architecture expositions and archives |
| ↑ | 720.92 | ↓ architects and their works |
| ↑ | 720.922 | ↓ groups of architects |
| ↑ | 720.92AAL | ↓ Alvar Aalto |
| ↑ | 720.92BOT | ↓ Mario Botta |
| ↑ | 720.92CAL | ↓ Santiago Calatrava |
| ↑ | 720.92FOS | ↓ Norman Foster |
| ↑ | 720.92GAU | ↓ Antoni Gaudí |
| ↑ | 720.92GRO | ↓ Walter Gropius |
| ↑ | 720.92KAH | ↓ Louis Kahn |
| ↑ | 720.92KOO | ↓ Rem Koolhaas |
| ↑ | 720.92LEC | ↓ Le Corbusier |
| ↑ | 720.92MIE | ↓ Ludwig Mies van der Rohe |
| ↑ | 720.92NOU | ↓ Jean Nouvel |
| ↑ | 720.92PIA | ↓ Renzo Piano |
| ↑ | 720.92POR | ↓ Paolo Portoghesi |
| ↑ | 720.92ROS | ↓ Aldo Rossi |
| ↑ | 720.92WRI | ↓ Frank Lloyd Wright |
| ↑ | 720.94 | ↓ architecture in Europe |
| ↑ | 720.94529 | ↓ Pavia architecture |
| ↑ | 720.9456 | ↓ Roman and central-Italian architecture |
| ↑ | 720.95 | ↓ architecture in Asia |
| ↑ | 721 | ↓ building and architectural structures |
| ↑ | 721.04 | ↓ architecture materials |
| ↑ | 722 | ↓ ancient architecture |
| ↑ | 722.3 | ↓ Semitic ancient architecture |
| ↑ | 722.5 | ↓ Middle East ancient architecture |
| ↑ | 722.7 | ↓ Roman architecture |
| ↑ | 722.8 | ↓ Hellenic architecture |
| ↑ | 723 | ↓ Middle Age architecture |
| ↑ | 724 | ↓ Renaissance and modern architecture |
| ↑ | 724.1 | ↓ 15th-18th century architecture |
| ↑ | 724.12 | ↓ 15th century architecture |
| ↑ | 724.14 | ↓ 16th century architecture |
| ↑ | 724.16 | ↓ 17th century architecture |
| ↑ | 724.19 | ↓ 18th century architecture |
| ↑ | 724.5 | ↓ 19th century architecture |
| ↑ | 724.6 | ↓ 20th century architecture |
| ↑ | 724.7 | ↓ 21st century architecture |
| ↑ | 725 | ↓ public buildings |
| ↑ | 725.1 | ↓ administration buildings |
| ↑ | 725.18 | ↓ military buildings, fortresses |
| ↑ | 725.2 | ↓ commercial buildings |
| ↑ | 725.3 | ↓ buildings for tranport and storage |
| ↑ | 725.4 | ↓ industrial buildings, industrial archaeology |
| ↑ | 725.5 | ↓ health buildings |
| ↑ | 725.8 | ↓ buildings for shows and recreation |
| ↑ | 726 | ↓ buildings for worship |
| ↑ | 726.5 | ↓ Christian churches and chapels |
| ↑ | 726.6 | ↓ cathedrals |
| ↑ | 726.7 | ↓ monasteries |
| ↑ | 726.8 | ↓ tombs and cemeteries |
| ↑ | 727 | ↓ buildings for education and research |
| ↑ | 727.1 | ↓ school buildings |
| ↑ | 727.3 | ↓ university and college buildings |
| ↑ | 727.7 | ↓ museums |
| ↑ | 727.75 | ↓ science museums |
| ↑ | 727.8 | ↓ libraries |
| ↑ | 728 | ↓ houses |
| ↑ | 728.3 | ↓ residential buildings |
| ↑ | 728.31 | ↓ multiple dwellings |
| ↑ | 728.37 | ↓ single family houses |
| ↑ | 728.5 | ↓ hotels and motels |
| ↑ | 728.6 | ↓ rural houses |
| ↑ | 728.8 | ↓ castles, manors |
| ↑ | 729 | ↓ design and decoration |
| ↑ | 729.1 | ↓ vertical design |
| ↑ | 729.2 | ↓ horizontal design |
| ↑ | 729.28 | ↓ lighting |
| | 730 | ↓ sculpture, plastic arts |
| ↑ | 730 | ↓ sculpture in general |
| ↑ | 730.92 | ↓ sculptors |
| ↑ | 733 | ↓ ancient sculpture |
| ↑ | 737 | ↓ numismatics |
| ↑ | 738 | ↓ ceramic arts |
| | 740 | ↓ graphic and decorative arts |
| ↑ | 741 | ↓ drawing, illustration and comics |
| ↑ | 741.6 | ↓ illustration |
| ↑ | 744 | ↓ communication and visual design, graphics |
| ↑ | 745 | ↓ design, decoration |
| ↑ | 745.2 | ↓ design, industrial art |
| ↑ | 745.67 | ↓ illumination |
| ↑ | 747 | ↓ interior decoration |
| | 750 | ↓ painting |
| ↑ | 750 | ↓ painting in general |
| ↑ | 751 | ↓ painting techniques |
| ↑ | 755 | ↓ religious painting |
| ↑ | 757 | ↓ human pictures |
| ↑ | 759 | ↓ painting in specific periods and regions |
| ↑ | 759.5 | ↓ Italian painting |
| ↑ | 759.529 | ↓ Pavia painting |
| | 770 | ↓ photography and cinematography |
| ↑ | 770 | ↓ photography in general |
| ↑ | 777 | ↓ cinema and videos |
| | 780 | ↓ music |
| ↑ | 780 | ↓ music in general |
| ↑ | 780.02 | ↓ music and religion |
| ↑ | 780.03 | ↓ music and society |
| ↑ | 780.061 | ↓ music and medicine |
| ↑ | 780.07 | ↓ music and arts |
| ↑ | 780.0791 | ↓ music and cinema |
| ↑ | 780.08 | ↓ music and literature |
| ↑ | 780.1 | ↓ music theory |
| ↑ | 780.14 | ↓ music language and communication |
| ↑ | 780.148 | ↓ music notation |
| ↑ | 780.149 | ↓ music editing and publication |
| ↑ | 780.26 | ↓ scores and texts |
| ↑ | 780.262 | ↓ music manuscripts |
| ↑ | 780.285 | ↓ music computing |
| ↑ | 780.3 | ↓ music dictionaries |
| ↑ | 780.6 | ↓ music organizations |
| ↑ | 780.7 | ↓ music education |
| ↑ | 780.76 | ↓ handbooks, examinations |
| ↑ | 780.77 | ↓ music pedagogy |
| ↑ | 780.8 | ↓ social groups in music |
| ↑ | 780.82 | ↓ women in music |
| ↑ | 780.89 | ↓ ethnomusicology |
| ↑ | 780.9 | ↓ music history |
| ↑ | 780.902 | ↓ music in the Middle Ages |
| ↑ | 780.903 | ↓ music in the Modern Age |
| ↑ | 780.9031 | ↓ music 1450 to 1599 |
| ↑ | 780.9032 | ↓ music 1600 to 1750 |
| ↑ | 780.9033 | ↓ music 1750 to 1825 |
| ↑ | 780.9034 | ↓ music 1825 to 1899 |
| ↑ | 780.904 | ↓ music in 20th century |
| ↑ | 780.92 | ↓ musicians [all ↓] |
| ↑ | 780.92.BAC | ↓ Bach |
| ↑ | 780.92.BAR | ↓ Bartók |
| ↑ | 780.92.BEE | ↓ Beethoven |
| ↑ | 780.92.BOC | ↓ Boccherini |
| ↑ | 780.92.BRA | ↓ Brahms |
| ↑ | 780.92.BRI | ↓ Britten |
| ↑ | 780.92.BRU | ↓ Bruckner |
| ↑ | 780.92.CAG | ↓ Cage |
| ↑ | 780.92.CAJ | ↓ Cajkovskij |
| ↑ | 780.92.DAL | ↓ Dallapiccola |
| ↑ | 780.92.DEB | ↓ Debussy |
| ↑ | 780.92.HAN | ↓ Händel |
| ↑ | 780.92.HAY | ↓ Haydn |
| ↑ | 780.92.MAH | ↓ Mahler |
| ↑ | 780.92.MEN | ↓ Mendelssohn Bartholdy |
| ↑ | 780.92.MES | ↓ Messiaen |
| ↑ | 780.92.MOZ | ↓ Mozart |
| ↑ | 780.92.NON | ↓ Nono |
| ↑ | 780.92.RAV | ↓ Ravel |
| ↑ | 780.92.SOS | ↓ Shostakovich |
| ↑ | 780.92.VIV | ↓ Vivaldi |
| ↑ | 780.922 | ↓ collective biographies of musicians |
| ↑ | 780.92243 | ↓ German musicians |
| ↑ | 780.92245 | ↓ Italian musicians |
| ↑ | 780.93 | ↓ music in Antiquity |
| ↑ | 780.937 | ↓ music in Roman age |
| ↑ | 780.938 | ↓ music in ancient Greece |
| ↑ | 780.94 | ↓ European music |
| ↑ | 780.942 | ↓ English music |
| ↑ | 780.943 | ↓ German music |
| ↑ | 780.944 | ↓ French music |
| ↑ | 780.945 | ↓ Italian music |
| ↑ | 780.9451 | ↓ music in NW Italy |
| ↑ | 780.9452 | ↓ music in Lombardy |
| ↑ | 780.94521 | ↓ music in Milan |
| ↑ | 780.9453 | ↓ music in Veneto, Trentino AA, Friuli VG |
| ↑ | 780.94531 | ↓ music in Venice |
| ↑ | 780.9454 | ↓ music in Emilia-Romagna |
| ↑ | 780.9455 | ↓ music in Tuscany |
| ↑ | 780.9456 | ↓ music in central Italy |
| ↑ | 780.9457 | ↓ music in Southern Italy |
| ↑ | 780.9458 | ↓ music in Sicily |
| ↑ | 780.946 | ↓ music in Spain and Portugal |
| ↑ | 780.947 | ↓ music in Russia |
| ↑ | 780.948 | ↓ music in Northern Europe |
| ↑ | 780.95 | ↓ music in Asia |
| ↑ | 780.96 | ↓ music in Africa |
| ↑ | 780.97 | ↓ music in Northern America |
| ↑ | 780.98 | ↓ music in Southern America |
| ↑ | 781 | ↓ music principles and forms |
| ↑ | 781.09 | ↓ history of music principles |
| ↑ | 781.0902 | ↓ music principles in Middle Ages |
| ↑ | 781.0903 | ↓ music principles in Modern Age |
| ↑ | 781.09031 | ↓ music principles in 16th century |
| ↑ | 781.0904 | ↓ music principles in 20th century |
| ↑ | 781.092 | ↓ music theoreticians |
| ↑ | 781.0938 | ↓ music principles in ancient Greece |
| ↑ | 781.094 | ↓ music principles in Europe |
| ↑ | 781.1 | ↓ fundamental principles of music |
| ↑ | 781.11 | ↓ psychological principles of music |
| ↑ | 781.17 | ↓ artistic principles of music |
| ↑ | 781.1709 | ↓ history of artistic principles of music |
| ↑ | 781.17092 | ↓ music art theoreticians |
| ↑ | 781.17094 | ↓ artistic principles of music in 20th century |
| ↑ | 781.2 | ↓ music elements |
| ↑ | 781.22 | ↓ tempo |
| ↑ | 781.224 | ↓ rhythm |
| ↑ | 781.23 | ↓ music sound |
| ↑ | 781.24 | ↓ melody |
| ↑ | 781.25 | ↓ harmony |
| ↑ | 781.2509 | ↓ harmony in history |
| ↑ | 781.26 | ↓ tonal systems |
| ↑ | 781.263 | ↓ Medieval ecclesiastical modes |
| ↑ | 781.28 | ↓ tessitura |
| ↑ | 781.286 | ↓ counterpoint |
| ↑ | 781.3 | ↓ composition |
| ↑ | 781.309 | ↓ history of composition |
| ↑ | 781.33 | ↓ seriality |
| ↑ | 781.4 | ↓ music techniques |
| ↑ | 781.42 | ↓ learning techniques, solfège |
| ↑ | 781.43 | ↓ execution techniques |
| ↑ | 781.4309 | ↓ history of execution techniques |
| ↑ | 781.45 | ↓ direction |
| ↑ | 781.46 | ↓ interpretation |
| ↑ | 781.4609 | ↓ history of interpretation |
| ↑ | 781.47 | ↓ accompaniment |
| ↑ | 781.49 | ↓ music recording |
| ↑ | 781.5 | ↓ music types |
| ↑ | 781.542 | ↓ music for movies |
| ↑ | 781.556 | ↓ music for ballet |
| ↑ | 781.6 | ↓ musical traditions |
| ↑ | 781.62 | ↓ traditional folk music |
| ↑ | 781.62007 | ↓ ethnomusicology |
| ↑ | 781.625 | ↓ Italian traditional music |
| ↑ | 781.63 | ↓ light music, pop |
| ↑ | 781.64 | ↓ Western popular music |
| ↑ | 781.65 | ↓ jazz |
| ↑ | 781.66 | ↓ rock |
| ↑ | 781.7 | ↓ sacred music |
| ↑ | 781.71 | ↓ Christian sacred music |
| ↑ | 781.710092 | ↓ Christian musicians |
| ↑ | 781.72 | ↓ music of Christian liturgical year |
| ↑ | 781.8 | ↓ musical forms |
| ↑ | 782 | ↓ vocal music |
| ↑ | 782.00268 | ↓ music lyrics |
| ↑ | 782.0092 | ↓ vocal music authors and interpreters |
| ↑ | 782.1 | ↓ drama vocal music, operas |
| ↑ | 782.1.MOZ | ↓ Mozart |
| ↑ | 782.1.VER | ↓ Verdi |
| ↑ | 782.1.WAG | ↓ Wagner |
| ↑ | 782.10268 | ↓ librettos |
| ↑ | 782.109 | ↓ history of opera music |
| ↑ | 782.109032 | ↓ opera 1600 to 1750 |
| ↑ | 782.109034 | ↓ opera 1825 to 1899 |
| ↑ | 782.10904 | ↓ opera in 20th century |
| ↑ | 782.1092 | ↓ opera authors and interpreters |
| ↑ | 782.10922 | ↓ collective biographies of opera authors and interpreters |
| ↑ | 782.1094 | ↓ opera in Europe |
| ↑ | 782.10943 | ↓ opera in Germany |
| ↑ | 782.10944 | ↓ opera in France |
| ↑ | 782.10945 | ↓ opera in Italy |
| ↑ | 782.2 | ↓ non-drama vocal music |
| ↑ | 782.20262 | ↓ vocal music manuscripts |
| ↑ | 782.20902 | ↓ Medieval vocal music |
| ↑ | 782.2092 | ↓ non-drama vocal music authors and interpreters |
| ↑ | 782.22 | ↓ sacred vocal forms |
| ↑ | 782.220262 | ↓ sacred vocal music manuscripts |
| ↑ | 782.22092 | ↓ authors and interpreters of sacred vocal music |
| ↑ | 782.23 | ↓ oratorios |
| ↑ | 782.24 | ↓ complex vocal compositions |
| ↑ | 782.25 | ↓ simple vocal compositions |
| ↑ | 782.26 | ↓ mottettos |
| ↑ | 782.27 | ↓ hymns |
| ↑ | 782.29 | ↓ liturgical vocal music |
| ↑ | 782.297 | ↓ tropes |
| ↑ | 782.298 | ↓ liturgic drama |
| ↑ | 782.3 | ↓ religious functions |
| ↑ | 782.32219 | ↓ orthodox functions |
| ↑ | 782.3222 | ↓ Gregorian chants |
| ↑ | 782.323 | ↓ mass |
| ↑ | 782.324 | ↓ divine office |
| ↑ | 782.4 | ↓ prophane forms |
| ↑ | 782.42 | ↓ songs |
| ↑ | 782.43 | ↓ poetry-derivated forms |
| ↑ | 782.43092 | ↓ authors of poetry-derivated forms |
| ↑ | 782.430945 | ↓ poetry-derivated forms in Italy |
| ↑ | 782.47 | ↓ song cycles |
| ↑ | 782.48 | ↓ prophane cantatas |
| ↑ | 782.5 | ↓ mixed voices |
| ↑ | 783 | ↓ music for single voices |
| ↑ | 783.2 | ↓ solo voice |
| ↑ | 784 | ↓ instruments and ensembles |
| ↑ | 784.1 | ↓ principles, forms, instruments |
| ↑ | 784.183 | ↓ sonata |
| ↑ | 784.188 | ↓ dance forms |
| ↑ | 784.19 | ↓ instruments |
| ↑ | 784.19074 | ↓ instrument museums and collections |
| ↑ | 784.1909 | ↓ history of instruments |
| ↑ | 784.192 | ↓ techniques and procedures for instruments |
| ↑ | 784.2 | ↓ symphonic orchestra |
| ↑ | 784.8 | ↓ band |
| ↑ | 785 | ↓ single-instruments ensembles |
| ↑ | 785.71 | ↓ groups of strings |
| ↑ | 786 | ↓ keyboard, mechanic and percussion instruments |
| ↑ | 786.2 | ↓ pianos |
| ↑ | 786.2092 | ↓ piano authors and interpreters |
| ↑ | 786.3 | ↓ clavichords |
| ↑ | 786.4 | ↓ harpsichords |
| ↑ | 786.5 | ↓ organs |
| ↑ | 786.5092 | ↓ organists |
| ↑ | 786.5094 | ↓ European organs |
| ↑ | 786.5192 | ↓ organ techniques |
| ↑ | 786.51943 | ↓ German organs |
| ↑ | 786.51944 | ↓ French organs |
| ↑ | 786.51945 | ↓ Italian organs |
| ↑ | 786.55 | ↓ reed and regal organs |
| ↑ | 786.6 | ↓ mechanic and eolic instruments |
| ↑ | 786.7 | ↓ electronic instruments |
| ↑ | 786.8 | ↓ percussion instruments |
| ↑ | 786.9 | ↓ drums |
| ↑ | 786519 | ↓ specific organs |
| ↑ | 787 | ↓ stringed instruments |
| ↑ | 787.2 | ↓ fiddles |
| ↑ | 787.2092 | ↓ fiddlers |
| ↑ | 787.219092 | ↓ lutists, fiddle makers |
| ↑ | 787.3 | ↓ violas |
| ↑ | 787.4 | ↓ cellos |
| ↑ | 787.5 | ↓ contrabasses |
| ↑ | 787.6 | ↓ old violas |
| ↑ | 787.8 | ↓ picked lute family |
| ↑ | 787.83 | ↓ lutes |
| ↑ | 787.87 | ↓ guitars |
| ↑ | 787.9 | ↓ harps |
| ↑ | 787219 | ↓ specific fiddles |
| ↑ | 788 | ↓ wind instruments |
| ↑ | 788.3 | ↓ flute family |
| ↑ | 788.32 | ↓ transverse flutes |
| ↑ | 788.4 | ↓ reed instruments |
| ↑ | 788.5 | ↓ double-reed instruments |
| ↑ | 788.6 | ↓ simple-reed instruments |
| ↑ | 788.9 | ↓ brasses |
| | 790 | ↓ sport and entertainment |
| ↑ | 790 | ↓ sport and entertainment in general |
| ↑ | 790.2 | ↓ performance and show arts |
| ↑ | 791 | ↓ public shows |
| ↑ | 791.43 | ↓ cinema |
| ↑ | 791.4301 | ↓ cinema theory |
| ↑ | 791.4302 | ↓ film techniques |
| ↑ | 791.430233 | ↓ film direction |
| ↑ | 791.4309 | ↓ history of cinema |
| ↑ | 791.430945 | ↓ history of Italian cinema |
| ↑ | 791.430973 | ↓ history of American cinema |
| ↑ | 791.436 | ↓ genres and themes of cinema |
| ↑ | 791.44 | ↓ radio broadcasting |
| ↑ | 791.45 | ↓ television |
| ↑ | 792 | ↓ theatre |
| ↑ | 792.01 | ↓ theatre theory |
| ↑ | 792.02 | ↓ theatre techniques |
| ↑ | 792.09 | ↓ history of theatre |
| ↑ | 792.0938 | ↓ ancient Greek theatre |
| ↑ | 792.094 | ↓ history of European theatre |
| ↑ | 792.0945 | ↓ history of Italian theatre |
| ↑ | 792.1 | ↓ tragedy and drama |
| ↑ | 792.2 | ↓ comedy |
| ↑ | 792.5 | ↓ opera |
| ↑ | 792.509 | ↓ history of opera |
| ↑ | 792.50945 | ↓ history of Italian opera |
| ↑ | 792.6 | ↓ musical shows, dance |
| ↑ | 792.8 | ↓ ballet and modern dance |
| ↑ | 793.3 | ↓ social, folk and national dance |
| ↑ | 793.7 | ↓ actionless games |
| ↑ | 793.74 | ↓ mathematical games |
| ↑ | 796 | ↓ athletic and outdoor sport and games |
| ↑ | 796.08 | ↓ sportsmen of special categories |
| | 800 | ↓ literature |
| ↑ | 800 | ↓ literature in general |
| ↑ | 801 | ↓ philosophy and theory of literature |
| ↑ | 801.93 | ↓ aesthetics |
| ↑ | 801.95 | ↓ literary criticism |
| ↑ | 801.959 | ↓ text criticism |
| ↑ | 808 | ↓ rhetorics |
| ↑ | 808.02 | ↓ editing techniques |
| ↑ | 808.1 | ↓ poetry rhetorics |
| ↑ | 808.3 | ↓ rhetorics of fiction |
| ↑ | 808.5 | ↓ speech rhetorics |
| ↑ | 808.8 | ↓ |
| ↑ | 808.8002 | ↓ Middle Ages texts |
| ↑ | 809 | ↓ history of literatures |
| ↑ | 809.02 | ↓ Middle Ages literatures |
| ↑ | 809.03 | ↓ modern literatures |
| ↑ | 809.04 | ↓ 20th Century literatures |
| ↑ | 809.1 | ↓ history of poetry |
| ↑ | 809.3 | ↓ history of fiction |
| ↑ | 809.933 | ↓ literature on special topics |
| ↑ | 809.93351 | ↓ legendary characters |
| ↑ | 813 | ↓ English American fiction |
| ↑ | 823 | ↓ English fiction |
| ↑ | 830 | ↓ German literature in general |
| ↑ | 831 | ↓ German poetry |
| ↑ | 832 | ↓ German drama |
| ↑ | 833 | ↓ German fiction |
| ↑ | 840 | ↓ Romance literatures |
| ↑ | 840.09 | ↓ history of Romance literatures |
| ↑ | 840.9 | ↓ history of French literature |
| ↑ | 841 | ↓ French poetry |
| ↑ | 841.1 | ↓ medieval French poetry |
| ↑ | 843 | ↓ French fiction |
| ↑ | 849 | ↓ Occitan literature, troubadours |
| | 850 | ↓ Italian literature |
| ↑ | 850 | ↓ Italian literature in general |
| ↑ | 850.9 | ↓ history of Italian literature |
| ↑ | 850.9001 | ↓ medieval Italian literature |
| ↑ | 850.9002 | ↓ humanism Italian literature |
| ↑ | 850.9009 | ↓ 20th-21th century Italian literature |
| ↑ | 851 | ↓ Italian poetry |
| ↑ | 851.009 | ↓ history of Italian poetry |
| ↑ | 851.04 | ↓ Italian lyric poetry and ballads |
| ↑ | 851.1 | ↓ medieval Italian poetry |
| ↑ | 851.2 | ↓ Humanism Italian poetry |
| ↑ | 851.3 | ↓ Renaissance Italian poetry |
| ↑ | 851.5 | ↓ 1542-1585 Italian poetry |
| ↑ | 851.5 | ↓ 1585-1748 Italian poetry |
| ↑ | 851.6 | ↓ 1748-1814 Italian poetry |
| ↑ | 851.7 | ↓ 1814-1859 Italian poetry |
| ↑ | 851.8 | ↓ 1859-1899 Italian poetry |
| ↑ | 851.9 | ↓ 20th-21th century Italian poetry |
| ↑ | 851.912 | ↓ 1900-1945 Italian poetry |
| ↑ | 851.914 | ↓ 1945-1999 Italian poetry |
| ↑ | 852 | ↓ Italian drama |
| ↑ | 853 | ↓ Italian fiction |
| ↑ | 853.1 | ↓ medieval Italian fiction |
| ↑ | 853.7 | ↓ 1814-1859 Italian fiction |
| ↑ | 853.8 | ↓ 1859-1899 Italian fiction |
| ↑ | 853.9 | ↓ 20th-21th century Italian novels |
| ↑ | 853.912 | ↓ 1900-1945 Italian fiction |
| ↑ | 853.914 | ↓ 1945-1999 Italian fiction |
| ↑ | 854 | ↓ Italian essays |
| ↑ | 856 | ↓ Italian epistolography |
| ↑ | 858 | ↓ Italian miscellaneous works |
| ↑ | 858.9 | ↓ 20th-21st century Italian miscellaneous works |
| ↑ | 861 | ↓ Spanish poetry |
| ↑ | 863 | ↓ Spanish fiction |
| ↑ | 869 | ↓ Portuguese literature |
| ↑ | 870 | ↓ Latin literature in general |
| ↑ | 870.9 | ↓ history of Latin literature |
| ↑ | 870.9001 | ↓ classic Latin literature |
| ↑ | 870.9003 | ↓ 750-1349 CE Latin literature |
| ↑ | 870.9004 | ↓ modern Latin literature |
| ↑ | 871 | ↓ Latin poetry |
| ↑ | 871.01 | ↓ classic Latin poetry |
| ↑ | 871.03 | ↓ 750-1349 CE Latin poetry |
| ↑ | 871.04 | ↓ modern Latin poetry |
| ↑ | 872 | ↓ Latin drama |
| ↑ | 873 | ↓ Latin epic and fiction |
| ↑ | 874 | ↓ Latin lyric poetry |
| ↑ | 875 | ↓ Latin speeches |
| ↑ | 876 | ↓ Latin epistolography |
| ↑ | 878 | ↓ Latin miscellaneous works |
| ↑ | 880 | ↓ Greek literature in general |
| ↑ | 880.09 | ↓ history of classic literatures |
| ↑ | 880.9 | ↓ history of Greek literature |
| ↑ | 881 | ↓ Greek poetry |
| ↑ | 882 | ↓ Greek drama |
| ↑ | 883 | ↓ Greek epic and fiction |
| ↑ | 884 | ↓ Greek lyric poetry |
| ↑ | 888 | ↓ Greek miscellaneous works |
| ↑ | 896 | ↓ African literatures |
| | 900 | ↓ geography and history |
| ↑ | 901 | ↓ philosophy and theory of history |
| ↑ | 904 | ↓ narrations of events |
| ↑ | 904.5 | ↓ natural events |
| ↑ | 907 | ↓ research and teaching in history |
| ↑ | 907.2 | ↓ research in history |
| ↑ | 909 | ↓ world history |
| ↑ | 909.04 | ↓ national and ethnic group history |
| ↑ | 909.0492 | ↓ history of Jews and other Semitic peoples |
| ↑ | 909.04927 | ↓ history of Arabs |
| ↑ | 909.09 | ↓ regional history |
| ↑ | 909.09767 | ↓ history of Islamic regions |
| ↑ | 909.09822 | ↓ history of Mediterranean Sea |
| ↑ | 909.8 | ↓ world history after 1800 |
| ↑ | 909.82 | ↓ 20th century world history |
| | 910 | ↓ geography |
| ↑ | 910 | ↓ geography in general, biogeography |
| ↑ | 910.02 | ↓ physical geography |
| ↑ | 910.28 | ↓ techniques and equipments of geography, GIS |
| ↑ | 910.4 | ↓ narration of travels, travel facilities |
| ↑ | 910.92 | ↓ geographers |
| ↑ | 911 | ↓ historical geography |
| ↑ | 912 | ↓ cartography |
| ↑ | 914 | ↓ Europe |
| ↑ | 914.52 | ↓ Lombardy |
| ↑ | 914.96 | ↓ Balkan peninsula |
| ↑ | 915 | ↓ Asia |
| ↑ | 915.1 | ↓ China and Korea |
| ↑ | 915.2 | ↓ Japan |
| ↑ | 915.4 | ↓ India |
| ↑ | 915.6 | ↓ Middle East |
| ↑ | 915.8 | ↓ Central Asia |
| ↑ | 916 | ↓ Africa |
| ↑ | 916.04 | ↓ travels in Africa |
| ↑ | 916.1 | ↓ Tunisia and Lybia |
| ↑ | 916.3 | ↓ Ethiopia and Eritrea |
| ↑ | 916.6 | ↓ West Africa |
| ↑ | 920 | ↓ biography in general |
| ↑ | 923 | ↓ biographies of social scientists |
| ↑ | 929 | ↓ genealogy and names |
| | 930 | ↓ ancient history |
| ↑ | 930 | ↓ ancient world history |
| ↑ | 930.1 | ↓ archaeology, archaeometry |
| ↑ | 933 | ↓ ancient history of Palestine |
| ↑ | 937 | ↓ ancient history of Italy |
| ↑ | 938 | ↓ |
| ↑ | 939 | ↓ history of other parts of the Ancient World |
| | 940 | ↓ European history |
| ↑ | 940 | ↓ European history in general |
| ↑ | 940.1 | ↓ medieval history of Europe |
| ↑ | 940.2 | ↓ modern history of Europe |
| ↑ | 940.3 | ↓ World War I |
| ↑ | 940.4 | ↓ military history of WW I |
| ↑ | 940.5 | ↓ history of Europe after WWI |
| ↑ | 940.53 | ↓ |
| ↑ | 940.54 | ↓ |
| ↑ | 941 | ↓ history of British Isles |
| ↑ | 941.6 | ↓ history of Northern Ireland |
| ↑ | 942 | ↓ English history |
| ↑ | 943 | ↓ German history |
| ↑ | 943.086 | ↓ Third Reich period |
| ↑ | 943.6 | ↓ history of Austria |
| ↑ | 943.8 | ↓ Polish history |
| ↑ | 944 | ↓ history of France |
| ↑ | 945 | ↓ Italian history |
| ↑ | 945.01 | ↓ ancient history of Italy |
| ↑ | 945.02 | ↓ history of Carolingian Italy |
| ↑ | 945.08 | ↓ history of Italy in 19th century |
| ↑ | 945.083 | ↓ history of Italian Risorgimento |
| ↑ | 945.09 | ↓ history of Italy in 20th-21st century |
| ↑ | 945.0915 | ↓ history of Italian Fascism |
| ↑ | 945.0916 | ↓ history of Italian Resistance |
| ↑ | 945.092 | ↓ history of Italy in 1945-1999 |
| ↑ | 945.1 | ↓ history of Piedmont and Liguria |
| ↑ | 945.2 | ↓ history of Lombardy |
| ↑ | 945.27 | ↓ history of Cremona |
| ↑ | 945.29 | ↓ history of Pavia |
| ↑ | 945.3 | ↓ history of Venezie |
| ↑ | 945.4 | ↓ history of Emilia |
| ↑ | 945.5 | ↓ history of Tuscany |
| ↑ | 945.6 | ↓ history of Rome and Central Italy |
| ↑ | 945.7 | ↓ history of Southern Italy |
| ↑ | 945.8 | ↓ history of Sicily |
| ↑ | 945.9 | ↓ history of Sardinia |
| ↑ | 946 | ↓ Spanish history |
| ↑ | 947 | ↓ Russian history |
| ↑ | 949 | ↓ history of other European countries |
| ↑ | 949.5 | ↓ Greek history |
| ↑ | 949.502 | ↓ history of Byzantium |
| ↑ | 949.65 | ↓ Albanian history |
| ↑ | 949.7 | ↓ Balkan history |
| ↑ | 949.8 | ↓ Romanian history |
| | 950 | ↓ Asian history |
| ↑ | 950 | ↓ Asian history in general |
| ↑ | 951 | ↓ Chinese history |
| ↑ | 953 | ↓ history of Arabian area |
| ↑ | 954 | ↓ Indian history |
| ↑ | 955 | ↓ history of Iran |
| ↑ | 956 | ↓ history of Middle East |
| ↑ | 956.04 | ↓ Afterwar Middle-East history |
| ↑ | 956.1 | ↓ history of Turkey |
| ↑ | 956.7 | ↓ history of Iraq |
| ↑ | 956.9 | ↓ history of Near East
|
| ↑ | 956.91 | ↓ history of Syria |
| ↑ | 956.94 | ↓ history of Israel |
| ↑ | 959 | ↓ history of SE Asia |
| ↑ | 959.6 | ↓ history of Cambodia |
| ↑ | 959.7 | ↓ Vietnamese history |
| | 960 | ↓ African history |
| ↑ | 960 | ↓ African history in general |
| ↑ | 960.3 | ↓ African history after 1885 |
| ↑ | 961 | ↓ history of Tunisia and Libia |
| ↑ | 962 | ↓ history of Egypt |
| ↑ | 963 | ↓ history of Ethiopia and Eritrea |
| ↑ | 964 | ↓ history of Morocco |
| ↑ | 965 | ↓ history of Algeria |
| ↑ | 966 | ↓ history of West Africa |
| ↑ | 966.9 | ↓ history of Nigeria |
| ↑ | 967 | ↓ history of central Africa |
| ↑ | 967.3 | ↓ history of Angola |
| ↑ | 967.5 | ↓ history of Congo, Rwanda, Burundi |
| ↑ | 967.6 | ↓ history of Uganda, Kenya |
| ↑ | 967.7 | ↓ history of Somalia |
| ↑ | 967.8 | ↓ history of Tanzania |
| ↑ | 967.9 | ↓ Mozambican history |
| ↑ | 968 | ↓ history of Southern Africa |
| ↑ | 968.9 | ↓ history of Rhodesia-Zimbabwe, Zambia, Malawi |
| ↑ | 968.91 | ↓ history of Zimbabwe |
| | 970 | ↓ North-American history |
| ↑ | 970 | ↓ history of Northern America in general |
| ↑ | 972 | ↓ history of Mexico and central America |
| ↑ | 973 | ↓ history of USA |
| | 980 | ↓ South-American history |
| ↑ | 982 | ↓ Argentinian history |
| ↑ | 983 | ↓ Chilean history |
| ↑ | 984 | ↓ Bolivian history |
| ↑ | 985 | ↓ Peruan history |
| ↑ | ?338.2728 | ↓ oil mining economics |
| ↑ | ANTICO.P | ↓ old materials |
| ↑ | B.3 | ↓ |
