| | | |
| ↑ | AA. | Studies on Africa and other areas |  ≈ 960 |
| ↑ | CSPE | African and Asian area studies | ≈ 950 960 |
| ↑ | D.PEN | Penal law / Criminal law | ≈ 345 |
| ↑ | D.PRI | Private law | ≈ 346 |
| ↑ | D.PRI.A | Companies, enterprises, shareholders | ≈ 346.06 |
| ↑ | D.PRI.B | Commercial law | ≈ 346.07 |
| ↑ | D.PRI.C | Private and civil law, civil procedure | ≈ 346 |
| ↑ | D.PRI.E | Bankruptcy law | ≈ 346.078 |
| ↑ | D.PRI.F | Industrial law (patents and licenses) | ≈ 346 |
| ↑ | D.PRI.G | Labour law | ≈ 344 |
| ↑ | D.PUB | Public law | ≈ 342 |
| ↑ | D.PUB.A | Regional law | ≈ 342 |
| ↑ | D.PUB.B | Parliamentary law | ≈ 342 |
| ↑ | D.PUB.C | Public economic law, accounting | ≈ 342 |
| ↑ | D.PUB.D | Philosophy of law, political sciences, sociology | ≈ 340.1 342 |
| ↑ | D.PUB.E | Science of finance, tax law | ≈ 343.04 |
| ↑ | D.PUB.F | Administrative law | ≈ 342 |
| ↑ | D.PUB.G | International law | ≈ 342 |
| ↑ | D.PUB.H | European Union law | ≈ 342 341.2422 |
| ↑ | D.PUB.L | Public comparative law | ≈ 342 340.2 |
| ↑ | D.PUB.M | Environmental law | ≈ 344.046 |
| ↑ | D.PUB.N | Health law | ≈ 342 344.04 |
| ↑ | DD. | Diplomatic documents | ≈ 327.2 |
| ↑ | DD.CH | Diplomatic documents of Switzerland | ≈ 327.2 |
| ↑ | DD.FR | Diplomatic documents of France | ≈ 327.2 |
| ↑ | DD.GB | Diplomatic documents of Great Britain | ≈ 327.2 |
| ↑ | DD.IT | Diplomatic documents of Italy | ≈ 327.2 |
| ↑ | DD.IT AFR | Diplomatic documents Italy / Africa | ≈ 327.2 |
| ↑ | DD.USA | American diplomatic documents | ≈ 327.2 |
| ↑ | I.B | History of politcal doctrines | ≈ 320.09 |
| ↑ | I.C | General and contemporary history | ≈ 900 909.8 |
| ↑ | I.D | Doctrines (Orient) | ≈ 320 |
| ↑ | I.E | History of political parties and movements | ≈ 324.209 |
| ↑ | I.F | Slavery | ≈ 326 |
| ↑ | I.G | Archives | ≈ 320 |
| ↑ | I.H | Politcal doctrines (Middle Ages) | ≈ 320.01 |
| ↑ | I.I | History of social institutions | ≈ 306.09 |
| ↑ | II.A | International politics | ≈ 327 |
| ↑ | II.B | International politics (conflicts) | ≈ 327.16 |
| ↑ | II.C | International law | ≈ 341 |
| ↑ | II.D | International politics (manuals and depositions) | ≈ 327 |
| ↑ | II.E | Laws of Native Americans | ≈ 970 348 |
| ↑ | II.F | Diplomatic relations | ≈ 327 |
| ↑ | II.G | Foreign affairs | ≈ 327.1 |
| ↑ | III.A | [Europe] | ≈ 940 |
| ↑ | III.B | Europe | ≈ 940 |
| ↑ | III.C | International politics | ≈ 327 |
| ↑ | III.D | Italian politics | ≈ 940 |
| ↑ | III.E | History of fascism | ≈ 945.0915 |
| ↑ | III.F | European history | ≈ 940 |
| ↑ | III.G | Rome (politics) | ≈ 936 |
| ↑ | III.H | European history | ≈ 940 |
| ↑ | ISPE | Economic politics | ≈ 330 |
| ↑ | IV.A | Various | |
| ↑ | IV.B | Italy (geography) | ≈ 914.5 |
| ↑ | IV.C | USA | ≈ 917.3 |
| ↑ | IV.D | Vatican | ≈ 945.634 |
| ↑ | IX.A | Poltical studies | ≈ 320 |
| ↑ | IX.B | Political philosophy | ≈ 320.01 |
| ↑ | IX.C | Political sociology | ≈ 301 |
| ↑ | IX.D | International politics | ≈ 327 |
| ↑ | IX.E | Political studies | ≈ 320 |
| ↑ | IX.F | Political studies (democracy) | ≈ 321.8 |
| ↑ | IX.G | Political studies (Church) | ≈ 322.1 |
| ↑ | SP.1 | History of political thought and political philosophy | ≈ 320.01 |
| ↑ | SP.10 | International relations | ≈ 327 |
| ↑ | SP.11 | Ideology | ≈ 320.5 |
| ↑ | SP.12 | Political parties and party systems | ≈ 324.2 |
| ↑ | SP.13 | Pressure groups and movements | ≈ 322.43 |
| ↑ | SP.14 | Politcal institutions and regimes | ≈ 321 |
| ↑ | SP.15 | Science of administration and organization | ≈ 350 |
| ↑ | SP.16 | Public politics analysis | ≈ 320 |
| ↑ | SP.17 | Local government | ≈ 321 |
| ↑ | SP.18 | Electoral behavior | ≈ 324.63 324.7 |
| ↑ | SP.19 | Political culture and socialization | ≈ 323 |
| ↑ | SP.2 | Sociology and theory of law | ≈ 340.115 |
| ↑ | SP.20 | Political change and development | ≈ 321.09 |
| ↑ | SP.21 | Description of political systems | ≈ 321 |
| ↑ | SP.22 | Political anthropology | ≈ 301 |
| ↑ | SP.23 | Sociological theory | ≈ 301.01 |
| ↑ | SP.3 | Political and social psychology | ≈ 302 |
| ↑ | SP.4 | Epistemology | ≈ 121 |
| ↑ | SP.5 | General handbooks and anthologies | |
| ↑ | SP.6 | General political theory | ≈ 320.01 |
| ↑ | SP.7 | Political powers and elites | ≈ 324.4 |
| ↑ | SP.8 | Political and social conflicts | ≈ 303.6 |
| ↑ | SP.9 | Political communications and symbols | ≈ 324 |
| ↑ | STA | Statistics | ≈ 310 |
| ↑ | STA10 | International trade | ≈ 343.087 |
| ↑ | STA11 | Tourism and transport | ≈ 790.18 358.44 |
| ↑ | STA12A | Cultural statistics | ≈ 310 306 |
| ↑ | STA12B | Show business and free time | ≈ 353.77 790.1 |
| ↑ | STA13 | Legal statistics | ≈ 310 340 |
| ↑ | STA14A | Electoral statistics | ≈ 310 324.6 |
| ↑ | STA14B | Residences and building | ≈ 352.16 |
| ↑ | STA15 | Economic cycles and conjuncture | ≈ 330.904 |
| ↑ | STA16 | Market researches | ≈ 658.83 |
| ↑ | STA1A | Handbooks of statistics and economy | ≈ 310.723 330.01 |
| ↑ | STA1B | Conferences' acts and bibliographies | ≈ 310 |
| ↑ | STA1C | Methodological studies (ONU) | ≈ 341.23 |
| ↑ | STA2A | International statistics annual reports | ≈ 314 |
| ↑ | STA2B | Annual reports of Italian provinces and municipalities | |
| ↑ | STA2D | ISTAT (methods and regulations) | ≈ 310 |
| ↑ | STA3A | Environmental problems | ≈ 363.7 310 |
| ↑ | STA3B | Urban demography and economy | ≈ 304.6 330.91732 |
| ↑ | STA3C | Health statistics | ≈ 310 616 |
| ↑ | STA3D | Demographic annual reports | ≈ 310 304.6 |
| ↑ | STA3E | Migratory movements | ≈ 304.8 |
| ↑ | STA3F | Demography (handbooks and studies) | ≈ 304.6 310 |
| ↑ | STA3G | Italian census of population | |
| ↑ | STA3H | Regional statistic news reports | |
| ↑ | STA4 | Statistics and labour economics | ≈ 310 331 |
| ↑ | STA5 | Consumer goods (prices) | ≈ 310 338.52 |
| ↑ | STA6A | National accounting | |
| ↑ | STA6C | Pubblic finance | |
| ↑ | STA7 | Economy (banks) | |
| ↑ | STA9B | Agricultural economics statistics | |
| ↑ | STA9D | Industry and services | |
| ↑ | STA9E | Commercial industry (census) | |
| ↑ | STACONS | Statistic (literature) | |
| ↑ | V.B | Turkey and Middle East | ≈ 950 957 |
| ↑ | V.C | East Europe (Balkan area) | ≈ 949.6 |
| ↑ | V.D | Spain and Portugal | ≈ 946 |
| ↑ | V.E | International politics | ≈ 327 |
| ↑ | V.F | Great Britain | ≈ 941 |
| ↑ | VI.A | Russia | ≈ 947 |
| ↑ | VI.B | Germany, Austria | ≈ 943 |
| ↑ | VI.C | France, Switzerland, Belgium, the Netherlands | ≈ 944 |
| ↑ | VI.D | North America | ≈ 970 |
| ↑ | VI.E | South America | ≈ 980 |
| ↑ | VII.D | International politics | ≈ 327 |
| ↑ | VII.E | Corporative law | |
| ↑ | VIII.B | European history | ≈ 940 |
| ↑ | VIII.C | Middle Ages | ≈ 909.07 |
| ↑ | VIII.D | European political history | ≈ 940 |
| ↑ | VIII.E | Diplomatic agreements | ≈ 327.2 |
| ↑ | VIII.F | History | ≈ 900 |
| ↑ | X.A | Postwar resistance and politics | |
| ↑ | XII.B | First World War history | ≈ 940.3 |
| ↑ | XII.C | Political treaties | |
| ↑ | XII.D | Foreign policy FR | ≈ 327.1 |
| ↑ | XII.E | Second World War history | ≈ 940.53 |
| ↑ | XII.F | European political history | ≈ 940 |
| ↑ | XII.G | European international politics | ≈ 327 |
| ↑ | XII.H | World War | ≈ 909 |
| ↑ | XII.I | History, miscellany | ≈ 900 |
| ↑ | XII.L | Military history in fascist wars | ≈ 940 |
| ↑ | XIII.A | Economic policy | ≈ 337 |
| ↑ | XIII.B | Economic policy FR | ≈ 337 |
| ↑ | XIV.A | Economic historycal studies | ≈ 330.09 |
| ↑ | XIV.B | Financial economics | ≈ 336 |
| ↑ | XIV.C | Political economy | ≈ 330 |
| ↑ | XIV.D | Liberalism and protectionism | ≈ 382 320.51 |
| ↑ | XIV.E | Industry and finance | |
| 0 | | |
| ↑ | 01 | | → 330 |
| ↑ | 02 | | → 330.1 |
| ↑ | 03 | | → 330.1 |
| ↑ | 04 | | → 330.9 |
| ↑ | 05 | | → 330.12 |
| 1 | | |
| ↑ | 11 | | → 338.9 |
| ↑ | 12 | | → 338.9 |
| ↑ | 13 | | → 338.54 |
| 2 | | |
| ↑ | 21 | | → 330.0151 |
| ↑ | 22 | | → 519 |
| ↑ | 23 | | |
| ↑ | 23 | | → 332 519.8 |
| ↑ | 231 | | → 332 519.8 |
| ↑ | 239 | | → 332 519.8 |
| ↑ | 24 | | |
| ↑ | 24 | | → 658.4 |
| ↑ | 241 | | → 658.4 |
| ↑ | 242 | | → 658.4 |
| ↑ | 243 | | → 658.4 |
| ↑ | 244 | | → 658.4 |
| ↑ | 245 | | → 658.4 |
| ↑ | 246 | | → 658.4 |
| ↑ | 249 | | → 658.4 |
| ↑ | 25 | | |
| ↑ | 25 | | → 519.6 |
| ↑ | 251 | | → 519.72 |
| ↑ | 252 | | → 519.7 |
| ↑ | 253 | | → 515.642 |
| ↑ | 254 | | → 519.76 |
| ↑ | 259 | | → 519.6 |
| ↑ | 26 | | → 519.6 |
| ↑ | 26 | | → 511 |
| ↑ | 261 | | → 511.3 |
| ↑ | 262 | | → 512.7 |
| ↑ | 263 | | → 512.5 |
| ↑ | 264 | | → 515.7 |
| ↑ | 265 | | → 515.35 |
| ↑ | 266 | | → 515.723 |
| ↑ | 267 | | → 515.26 |
| ↑ | 268 | | → 518 |
| ↑ | 269 | | |
| ↑ | 27 | | → 514 |
| ↑ | 271 | | → 3 |
| ↑ | 272 | | → 003.54 |
| ↑ | 273 | | → 519.3 |
| ↑ | 274 | | → 511.5 |
| ↑ | 275 | | → 4 |
| ↑ | 276 | | → 4 |
| ↑ | 277 | | → 371.334 |
| ↑ | 278 | | → 006.3 |
| ↑ | 279 | | → 510 |
| ↑ | 28 | | |
| ↑ | 28 | | → 330.0151 |
| ↑ | 281 | | → 330.0151 |
| ↑ | 282 | | → 330.0151 |
| ↑ | 283 | | → 330.0151 |
| ↑ | 284 | | → 330.0151 |
| ↑ | 285 | | → 330.0151 |
| ↑ | 288 | | → 330.0151 |
| ↑ | 289 | | → 330.0151 |
| 3 | | |
| ↑ | 31 | | ≈ 332.401 |
| ↑ | 32 | | → 339.5 |
| 4 | | |
| ↑ | 41 | | → 343.087 |
| ↑ | 42 | | → 327 |
| ↑ | 43 | | → 382.17 |
| ↑ | 44 | | → 338.91 |
| 5 | | |
| ↑ | 51 | | → 025.1 |
| ↑ | 52 | | → 025.11 |
| ↑ | 53 | | → 658.8 |
| ↑ | 54 | | → 657 |
| 6 | | |
| ↑ | 61 | | → 338.6 |
| ↑ | 62 | | → 338 |
| ↑ | 63 | | → 338 |
| ↑ | 64 | | → 338.45 |
| 7 | | |
| ↑ | 71 | | → 630 |
| ↑ | 72 | | → 577 |
| ↑ | 73 | | → 330.9 |
| 8 | | |
| ↑ | 81 | | → 331.1 |
| ↑ | 82 | | → 331.1 |
| ↑ | 83 | | → 331.8 |
| ↑ | 84 | | → 331 |
| ↑ | 85 | | → 331.1 |
| 9 | | |
| ↑ | 91 | | → 331 |
| ↑ | 92 | | → 331 |
| ↑ | 93 | | → 330.91732 |
| ↑ | 94 | | → 330.9 |
| ↑ | ROI | | → 327 |
| ↑ | ROI.1 | | → 900 |
| ↑ | ROI.2 | | → 320 |
| ↑ | ROI.3 | | → 340 |
| ↑ | ROI.4 | | → 330 |
| 0 | reference, information | |
| 00 | information and computer science | |
| ↑ | 001 | knowledge | |
| ↑ | 001.4 | research methods and statistics | |
| ↑ | 001.5 | information, communication, HCI | → 006.7 153 808.02 ora 004.019 |
| ↑ | 003 | systems | → 518.6 519.6 ≈ :S.0 |
| ↑ | 003.5 | communication and control theory, cybernetics | → 629.8 ≈ :N.3 |
| ↑ | 003.7 | system types | ≈ 515.39 |
| ↑ | 003.8 | systems according to time | |
| ↑ | 004 | hardware, networks, computer science generally | → 519.4 621.39 ≈ :P.0 |
| ↑ | 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 | → 511.3 519.7 |
| ↑ | 005.117 | object-oriented programming | |
| ↑ | 005.13 | programming languages | ≈ :P.1 |
| ↑ | 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 | → 510.285 |
| ↑ | 005.74 | databases, big data | → 006.31 |
| ↑ | 005.8 | data security | → 343 |
| ↑ | 005.82 | encryption, cryptography | |
| ↑ | 006 | methods, applications | → 542 610.285 |
| ↑ | 006.3 | artificial intelligence | → 629.8 ≈ AI1 AI2 |
| ↑ | 006.31 | machine learning, data mining | → 005.74 658.403 |
| ↑ | 006.37 | artificial vision | → 152.1 |
| ↑ | 006.6 | digital images | → 550.28 620.0042 621.36 |
| ↑ | 006.7 | multimedia, Web interfaces | → 001.5 |
| ↑ | 016.2 | religious bibliography | → 2 |
| ↑ | 016.54 | bibliography of chemistry | → 540 |
| ↑ | 016.78 | music bibliography | → 780 |
| ↑ | 016.78026 | bibliography on scores and texts | → 780.26 |
| ↑ | 016.780262 | bibliography on musical manuscripts | → 780.262 |
| ↑ | 016.78092 | bibliography on musicians | → 780.92 |
| ↑ | 016.780945 | Italian music bibliography | → 780.945 |
| ↑ | 016.781 | bibliography on music principles and forms | → 781 |
| ↑ | 016.782 | bibliography on vocal music | → 782 |
| ↑ | 016.7821 | bibliography on dramatic music | → 782.1 |
| ↑ | 016.7822 | bibliography on non-dramatic vocal music | → 782.2 |
| ↑ | 016.8 | bibliography on literature | → 800 |
| 02 | library and information science | |
| ↑ | 020 | library science in general | |
| ↑ | 025 | library activities and services | |
| ↑ | 027 | libraries and archives | → 727.8 |
| ↑ | 069 | museology | → 727.7 |
| ↑ | 070 | news, press, publishing | |
| ↑ | 079.6 | | → 916 |
| 1 | philosophy, psychology | |
| 15 | psychology, perception | |
| ↑ | 152 | perception, emotions | → 611.8 612.8 629.8 |
| ↑ | 152.1 | sensorial perception, vision | → 006.37 |
| ↑ | 153 | mental processes, understanding | → 001.5 616.89 |
| ↑ | 153.8 | will, choice, decisions | → 658.403 |
| ↑ | 160 | logic | → 510.1 511.3 |
| 17 | ethics | |
| ↑ | 170 | ethics generally, bioethics | → 340.112 |
| ↑ | 172 | | → 320.01 |
| ↑ | 172.4 | ethics of international relationships, peace | → 327.172 |
| ↑ | 174 | professional ethics | |
| ↑ | 174.2 | | → 610 |
| ↑ | 179 | applied ethics | |
| ↑ | 181.07 | Islamic philosophy | → 297 |
| ↑ | 181.4 | Indian philosophy | → 294.5 915.4 |
| 2 | religion | |
| 24 | Christian practice and observance | |
| ↑ | 248 | Christian practice | → 726.5 781.71 |
| ↑ | 251.53 | Jesuits | → 271.53 |
| ↑ | 262.9 | Church law | → 346.016 346.45016 |
| ↑ | 270.8 | history of Church after 1789 | → 909.8 |
| ↑ | 270.82 | history of Church in 20th century | → 909.82 |
| ↑ | 271.53 | history of Jesuits | → 251.53 |
| ↑ | 274.2 | christianism in England | → 942 |
| ↑ | 276 | Christianism in Africa | → 960 |
| ↑ | 282.09 | Roman Church history | → 956.9 |
| ↑ | 282.5 | catholic Church in Asia | → 915 |
| 29 | non-Christian religions | |
| ↑ | 294 | Buddhism, Hinduism | |
| ↑ | 294.5 | Hinduism | → 181.4 915.4 |
| ↑ | 296 | Judaism | |
| ↑ | 296.09 | history of Judaism | → 909.0492 933 956.94 |
| ↑ | 297 | Islam | → 181.07 305.697 340.59 |
| ↑ | 297.09 | history of Islam | → 956 |
| ↑ | 299 | other religions | |
| 3 | social sciences | |
| ↑ | 301 | sociology in general | → 923 |
| ↑ | 301.096 | sociology and anthropology of Africa | → 916 |
| ↑ | 304 | sociological essays | |
| ↑ | 304.2 | human ecology | → 363.7 577 |
| ↑ | 304.5 | nature and culture, human ethology, sociobiology | → 320 591.5 |
| ↑ | 304.6 | population | |
| ↑ | 304.8 | population movements | → 325 |
| ↑ | 305 | social groups | |
| ↑ | 305.42 | social function and status of women | → 331.4 |
| ↑ | 305.8 | ethnical groups | → 320 |
| ↑ | 305.800968 | apartheid | → 323.168 968 |
| ↑ | 305.89159 | Kurds | → 956 |
| ↑ | 305.8924 | Jews | → 909.0492 |
| ↑ | 305.8927 | Arabs | → 305.697 |
| ↑ | 305.8928 | Ethopians | → 963 |
| ↑ | 305697 | Muslims | → 297 305.8927 |
| ↑ | 306 | culture and institutions | |
| ↑ | 306.096 | African social history | → 960 |
| ↑ | 307 | communities | → 711.4 728 |
| 31 | statistics | |
| ↑ | 310 | general statistics | → 519.5 |
| 32 | political sciences | |
| ↑ | 320 | anthropology in general | → 304.5 305.8 599.93 |
| ↑ | 320.01 | | → 172 |
| ↑ | 320.531 | socialism | → 335 |
| ↑ | 320.55 | religion-grounded theories and ideologies | → 909.09767 |
| ↑ | 320.9174927 | polical conditions in Arab countries | → 320.956 |
| ↑ | 320.94 | political conditions in Europe | → 341.2422 |
| ↑ | 320.95 | political conditions in Asia | |
| ↑ | 320.956 | political conditions in Middle East | → 320.9174927 956 |
| ↑ | 320.95694 | political conditions in Palestine and Israel | → 327.5694 956.94 |
| ↑ | 320.96 | political conditions in Africa | → 960.3 |
| ↑ | 320.965 | political conditions in Algeria | → 349.65 |
| ↑ | 323.168 | minority rights in South Africa | → 305.800968 968 |
| ↑ | 323.6 | citizenship | |
| ↑ | 324.2 | political parties | → 329 |
| ↑ | 325 | migration | → 304.8 331.6 |
| ↑ | 325.2 | emigration | |
| ↑ | 325.3 | colonization | |
| ↑ | 325.309 | colonization history | → 950 960 |
| ↑ | 325.309034 | colonization in 19th Century | |
| ↑ | 325.32 | imperialism | |
| ↑ | 325.34 | European colonization | |
| ↑ | 325.341 | British colonization | → 960 |
| ↑ | 325.343 | German colonization | |
| ↑ | 325.344 | French colonization | |
| ↑ | 325.344096 | French colonization in Africa | |
| ↑ | 325.345 | Italian colonization | |
| ↑ | 325.345096 | Italian colonization in Africa | → 961 963 967.7 |
| ↑ | 325.346 | Spanish and Portuguese colonization | |
| ↑ | 325.3469 | Portuguese colonization | |
| ↑ | 325.6 | colonization of Africa | → 960 |
| ↑ | 327 | international relations | → 172.4 337 341 |
| ↑ | 327.0904 | international relations in 20th Century | → 909.82 |
| ↑ | 327.12 | secret service | |
| ↑ | 327.17 | international cooperation | → 341.7 |
| ↑ | 327.172 | promotion of peace | → 172.4 341.1 |
| ↑ | 327.4 | European international relations | → 341.2422 |
| ↑ | 327.406 | Europe-Africa relations | |
| ↑ | 327.41 | international relations of Britain | |
| ↑ | 327.45 | international relations of Italy | |
| ↑ | 327.5 | Asian international relations | |
| ↑ | 327.5691 | Syrian international relations | → 956.91 |
| ↑ | 327.5694 | international relations of Israel and Palestine | → 320.95694 956.94 |
| ↑ | 327.73 | international relations of USA | → 973 |
| ↑ | 329 | political parties [obsolete] | → 324.2 |
| 33 | economics | ≈ S.SPEC.39.DH |
| ↑ | 330.0151 | mathematical economics | → 519.8 ≈ :R.3 |
| ↑ | 330.17 | theory of property | → 346.04 346.4504 |
| ↑ | 330.91 | economic conditions by region | |
| ↑ | 330.95 | economic conditions in Asia | |
| ↑ | 330.96 | economic conditions in Africa | → 335.0096 338.96 |
| ↑ | 331.4 | working women | → 305.42 |
| ↑ | 331.6 | workers of particular ethnic groups | → 325 |
| ↑ | 332.1 | banks | → 346.08 |
| ↑ | 333 | real estate | |
| ↑ | 333.3 | private property, expertise | → 346.043 |
| ↑ | 333.33 | land sell | → 346.0436 |
| ↑ | 333.337 | selling urban land | → 711.4 |
| ↑ | 333.7 | natural resources, energy | → 338.927 354 621.31 720.47 |
| ↑ | 333.72 | conservation | → 344.046 639.9 719 ≈ S.SPEC.32.BJ `18C |
| ↑ | 333.95 | biological resources | → 577 |
| ↑ | 334 | cooperatives | |
| ↑ | 334.6 | producer cooperatives | |
| ↑ | 335 | socialist economy | → 320.531 |
| ↑ | 335.0096 | socialism in Africa | → 330.96 |
| ↑ | 337 | international economical politics | → 327 338.91 |
| ↑ | 337.4 | European foreign policy | |
| ↑ | 338 | production, microeconomics | → 658 |
| ↑ | 338.02 | products and services, study of commodities | → 333.7 |
| ↑ | 338.1 | agricultural economics | → 630 |
| ↑ | 338.1096 | economics of African agriculture | → 330.96 916 |
| ↑ | 338.2 | mining economics | → 622 |
| ↑ | 338.2728 | oil economics | → 622.33 915.6 |
| ↑ | 338.54 | economic fluctuations | → 519.5 |
| ↑ | 338.6 | production organization | |
| ↑ | 338.9 | economical development and growth | |
| ↑ | 338.91 | international development and growth | → 337 |
| ↑ | 338.92 | specific ecomonic policies | |
| ↑ | 338.927 | environmental economy, sustainable development | → 333.7 720.47 |
| ↑ | 338.96 | economical development of Africa | → 330.96 |
| 34 | law | |
| ↑ | 340 | law in general | |
| ↑ | 340.112 | law and ethics | → 170 |
| ↑ | 340.59 | Islamic law | → 297 349.65 |
| ↑ | 340.92 | conflict of laws on contracts and representation | → 346.02 |
| ↑ | 341 | international law | → 327 |
| ↑ | 341.1 | pacifism [obsolete] | → 327.172 |
| ↑ | 341.2422 | treatises of European Union | → 320.94 327.4 |
| ↑ | 341.45 | open sea | → 387.5 |
| ↑ | 341.7 | international cooperation law | → 327.17 |
| ↑ | 342 | public, administrative, constitutional law | |
| ↑ | 342.06 | administrative law | → 342.4506 |
| ↑ | 342.066 | administrative procedure | → 342.45066 |
| ↑ | 342.085 | rights and personal activities | → 342.45085 |
| ↑ | 342.0853 | freedom of information and opinion | → 342.450853 |
| ↑ | 342.0858 | privacy protection | → 342.240858 342.450858 |
| ↑ | 342.0878 | women rights | → 342.450878 |
| ↑ | 343 | military, public property, fiscal law | → 005.8 [e Fisica 34] |
| ↑ | 343.02 | public heritage law | → 343.4502 |
| ↑ | 343.025 | real estate | → 343.45025 |
| ↑ | 343.07 | economical law | → 343.4507 |
| ↑ | 343.071 | protection of consumers | → 343.45071 |
| ↑ | 343.076 | agriculture regulation | → 343.45076 630 |
| ↑ | 343.078 | secondary industries and services | → 343.45078 |
| ↑ | 343.08 | trade regulation | → 343.4508 |
| ↑ | 343.09 | public service law | → 343.4509 |
| ↑ | 343.094 | road transport law | → 343.45094 363.125 629.2 |
| ↑ | 343.094026 | traffic laws | → 343.45094026 |
| ↑ | 344 | social law, safety, environment, nature reserves | → 333.72 363 614 690.22 ≈ S.SPEC.32.BJ e al Botta 2 |
| ↑ | 344.01 | labour law | → 344.4501 |
| ↑ | 344.017 | professional qualification law | → 344.45017 |
| ↑ | 344.04 | law of social problems and services | → 344.4504 362 |
| ↑ | 344.041 | healthcare staff law | → 344.45041 610.69 |
| ↑ | 344.0419 | medical profession law | → 344.450419 |
| ↑ | 344.042 | laws on food and drugs | → 344.45042 615 664 |
| ↑ | 344.046 | environmental protection | → 333.72 344.45046 363.72 |
| ↑ | 344.09 | culture and religion law | → 344.4509 363.69 |
| ↑ | 345 | penal law | |
| ↑ | 346 | private, civil, urbanistic law | → 348 711 |
| ↑ | 346.0026 | texts of acts and verdicts of private law | → 346.450026 |
| ↑ | 346.01 | law of persons and families | → 346.4501 |
| ↑ | 346.013 | legal capacity of persons | → 346.45013 |
| ↑ | 346.0138 | capacity of persons with mental disorders | → 346.450138 |
| ↑ | 346.015 | family law | → 346.45015 |
| ↑ | 346.016 | marriage, domestic partnership, civil union | → 262.9 346.45016 |
| ↑ | 346.016026 | texts of acts on marriage | → 346.45016026 |
| ↑ | 346.0166 | divorce | → 346.450166 |
| ↑ | 346.02 | contracts and representation | → 340.92 346.4502 |
| ↑ | 346.02026 | texts of acts on contracts and representation | → 346.4502026 |
| ↑ | 346.022 | contracts | → 346.45022 |
| ↑ | 346.03 | offenses | → 346.4503 |
| ↑ | 346.03026 | texts of acts on offenses | → 346.4503026 |
| ↑ | 346.031 | employers responsibility | → 346.45031 |
| ↑ | 346.032 | negligence | → 346.45032 |
| ↑ | 346.0322 | accidents | → 346.450322 |
| ↑ | 346.0323 | personal injuries | → 346.450323 |
| ↑ | 346.04 | property | → 330.17 346.4504 |
| ↑ | 346.043 | real estate law | → 333.3 346.45043 |
| ↑ | 346.0434 | real estate tenancy | → 346.450434 |
| ↑ | 346.0434026 | texts of acts on real estate tenancy | → 346.450434026 |
| ↑ | 346.04348 | location of agricultural land | → 346.4504348 |
| ↑ | 346.04348026 | texts of acts on agricultural land location | → 346.4504348026 |
| ↑ | 346.0435 | easement | → 346.450435 |
| ↑ | 346.0436 | real estate sell | → 333.33 346.450436 |
| ↑ | 346.045 | land planning | → 690.2 711.4 |
| ↑ | 346.048 | copyright, patents and trade marks law | → 346.45048 608 |
| ↑ | 346.05 | inheritance | → 346.4505 |
| ↑ | 346.052 | inheritance and succession | → 346.45052 |
| ↑ | 346.054 | testament | → 346.45054 |
| ↑ | 346.059 | trusteeship, fideicommissum | → 346.45059 |
| ↑ | 346.06 | organizations, associations | → 346.4506 |
| ↑ | 346.064 | no-profit organizations | → 346.45064 |
| ↑ | 346.065 | law of enterprises | → 346.45065 |
| ↑ | 346.066 | company law | → 346.45066 |
| ↑ | 346.068 | enterprises without legal personality | → 346.45068 |
| ↑ | 346.07 | commercial law | → 346.4507 |
| ↑ | 346.072 | law of selling | → 346.45072 |
| ↑ | 346.073 | law of loan | → 346.45073 |
| ↑ | 346.074 | warranted operations | → 346.45074 |
| ↑ | 346.077 | law of creditors | → 346.45077 |
| ↑ | 346.08 | bank and insurance law | → 332.1 346.4508 368 |
| ↑ | 346.09 | investment and negotiable instrument law | → 346.4509 |
| ↑ | 346.092 | investment law | → 346.45092 |
| ↑ | 346.096 | negotiable instrument law | → 346.45096 |
| ↑ | 347.01 | tribunals | → 347.4501 |
| ↑ | 347.016 | public officers | → 347.45016 |
| ↑ | 347.07 | cases | → 347.4507 |
| ↑ | 347.077 | judgments | → 347.45077 |
| ↑ | 347.09 | arbitration | → 347.4509 |
| ↑ | 348 | laws, regulations, jurisprudence | → 346 |
| ↑ | 349 | law in specific states | |
| ↑ | 349.5 | law in Asian countries | → 915 |
| ↑ | 349.52 | Japanese law | → 915.2 |
| ↑ | 349.6 | law in African countries | → 916 |
| ↑ | 349.63 | Ethopian law | → 916.3 |
| ↑ | 349.65 | Algerian law | → 320.965 340.59 916.5 |
| ↑ | 349.67 | law in central Africa | |
| 35 | public administration and military science | |
| ↑ | 352.5 | heritage administration | → 725.1 |
| ↑ | 355 | military science | → 358.4 359 623 |
| ↑ | 358.4 | air force and operations | → 355 629.1 |
| ↑ | 359 | maritime force and operations | → 355 |
| 36 | social problems and services | |
| ↑ | 361 | social services | |
| ↑ | 362 | welfare | → 344.04 |
| ↑ | 362.1 | health services | → 614 |
| ↑ | 363 | security and social problems | → 344 |
| ↑ | 363.1 | public security | → 620.11 628.9 |
| ↑ | 363.12 | transportation risk | → 711.7 |
| ↑ | 363.125 | road transportation risk | → 343.094 629.213 |
| ↑ | 363.17 | dangerous substances | |
| ↑ | 363.25 | criminal investigation | → 614.1 |
| ↑ | 363.3 | civil protection, disasters | → 624.176 |
| ↑ | 363.69 | cultural heritage protection | → 344.09 |
| ↑ | 363.7 | pollution, environmental concerns | → 304.2 344.046 628.5 632.95 |
| ↑ | 364 | criminology | → 614.17 |
| ↑ | 368 | insurance | → 346.08 519.8 |
| 37 | education | |
| ↑ | 370 | education in general, pedagogy, textbooks at Physics Library | → 507 510.7 707 ≈ :T.7 |
| ↑ | 370.96 | learning in Africa | → 916 |
| ↑ | 378 | university | → 727.3 ≈ S.SPEC.38.DE |
| ↑ | 378.4529 | University of Pavia | → 945.29 |
| 38 | communication | |
| ↑ | 385 | rail transport | → 625.1 |
| ↑ | 386 | river transport | |
| ↑ | 386.4 | transport via canals | → 627.13 |
| ↑ | 386.43 | Suez Canal | |
| ↑ | 387.5 | maritime transport | → 341.45 |
| 4 | languages | ≈ S.SPEC.38.DF |
| ↑ | 420 | English in general | |
| ↑ | 423 | English dictionaries | → 503 603 ≈ :C.92 |
| ↑ | 433 | German dictionaries | ≈ :C.93 |
| ↑ | 443 | French dictionaries | ≈ :C.94 |
| ↑ | 453 | Italian dictionaries | ≈ :C.91 |
| ↑ | 491 | Indo-iranic languages, Russian language | |
| ↑ | 492 | Semitic languages, Arabian language | |
| ↑ | 495 | Eastern languages, Chinese | |
| ↑ | 496 | African languages | → 896 916 |
| 5 | pure sciences | |
| 50 | science | |
| ↑ | 500 | sciences generally | |
| ↑ | 501 | philosophy of science | ≈ :ZE.0 S.SPEC.38.DC |
| ↑ | 502 | professions and materials | |
| ↑ | 502.8 | techniques, devices, equipment | |
| ↑ | 502.82 | microscopy | |
| ↑ | 503 | scientific dictionaries and encyclopedias | → 423 603 |
| ↑ | 507 | science didactics, textbooks at Botta 2 | → 370 510.7 ≈ :T.6 |
| ↑ | 509 | history of science | ≈ :D.1 `31E |
| 51 | mathematics | |
| ↑ | 510 | mathematics generally | ≈ `60E |
| ↑ | 510.1 | philosophy of mathematics | → 160 |
| ↑ | 510.21 | mathematics tables | → 515.021 |
| ↑ | 510.285 | computers in mathematics | → 005.72 519.4 |
| ↑ | 510.7 | mathematics teaching | → 370 507 793.74 ≈ :T.5 |
| ↑ | 510.9 | history of mathematics | ≈ :D.2 |
| ↑ | 511 | general principles of mathematics | ≈ :E.0 |
| ↑ | 511.3 | mathematical logic, computability | → 005.1 ≈ :E.1 |
| ↑ | 511.32 | sets | ≈ :E.2 |
| ↑ | 511.35 | recursitivy, cellular automata, λ calculus | |
| ↑ | 511.4 | approximations, error | → 518.5 ≈ :I.9 |
| ↑ | 511.5 | graph theory | ≈ :F.1 |
| ↑ | 511.6 | combinatorics | ≈ :F.0 |
| ↑ | 512 | algebra | ≈ :G.0 AL1 |
| ↑ | 512.2 | group theory | ≈ :G.9 |
| ↑ | 512.3 | field theory | ≈ :G.3 |
| ↑ | 512.4 | rings | ≈ :G.6 |
| ↑ | 512.482 | Lie algebras and groups | ≈ :M.3 |
| ↑ | 512.5 | linear algebra | ≈ :G.5 |
| ↑ | 512.6 | category theory, homological algebra, K theory | ≈ :G.8 |
| ↑ | 512.7 | number theory | ≈ :H.0 |
| ↑ | 512.72 | elementar number theory | ≈ :H.1 |
| ↑ | 512.74 | algebraic number theory | ≈ :H.2 |
| ↑ | 512.75 | geometry of numbers | ≈ :H.2 |
| ↑ | 512.9 | foundations of algebra, logarithms | |
| ↑ | 514 | topology | ≈ :L.0 L.1 |
| ↑ | 514.2 | algebraic topology | ≈ :L.2 |
| ↑ | 514.7 | analytical, differential, global topology | ≈ :L.3 |
| ↑ | 514.74 | global analysis, fractals | ≈ :M.1 |
| ↑ | 515 | calculus | → 518.6 ≈ :I.0 |
| ↑ | 515.021 | tables of calculus | → 510.21 ≈ :I.99 |
| ↑ | 515.07 | exercises in analysis | ≈ :I.98 |
| ↑ | 515.2 | general aspects of calculus | |
| ↑ | 515.24 | sequences and series, Fourier analysis | ≈ :I.8 I.10 |
| ↑ | 515.3 | differential calculus | ≈ :I.13 |
| ↑ | 515.35 | differential equations | |
| ↑ | 515.352 | ordinary differential equations, ODEs | → 518.63 ≈ :I.14 |
| ↑ | 515.353 | partial differential equations, PDEs | ≈ :I.15 |
| ↑ | 515.355 | nonlinear differential equations | |
| ↑ | 515.39 | dynamical systems, chaos | → 003.7 ≈ :I.14 |
| ↑ | 515.4 | integral calculus, integral equations | |
| ↑ | 515.42 | measure and integration theory | ≈ :I.3 |
| ↑ | 515.45 | integral equations | ≈ :I.17 |
| ↑ | 515.5 | special functions | ≈ :I.7 |
| ↑ | 515.6 | other analytical methods | |
| ↑ | 515.62 | finite differences | ≈ :I.16 |
| ↑ | 515.64 | calculus of variations | ≈ :I.19 |
| ↑ | 515.7 | functional analysis | ≈ :I.18 |
| ↑ | 515.72 | operator calculus, transforms | ≈ :I.12 |
| ↑ | 515.75 | functional equations | ≈ :I.16 |
| ↑ | 515.785 | abstract harmonic calculus | ≈ :I.11 |
| ↑ | 515.8 | real variable functions | ≈ :I.2 |
| ↑ | 515.9 | complex variable functions | |
| ↑ | 515.93 | functions of one complex variable | ≈ :I.4 |
| ↑ | 515.94 | functions of several complex variables | ≈ :I.6 |
| ↑ | 515.96 | potential theory | ≈ :I.5 |
| ↑ | 516 | geometry | ≈ :J.0 |
| ↑ | 516.08 | convex sets | ≈ :J.2 |
| ↑ | 516.3 | analytical geometries | |
| ↑ | 516.35 | algebraic geometry | ≈ :K.0 |
| ↑ | 516.353 | several-dimension algebraic manifolds | ≈ :K.3 K.4 |
| ↑ | 516.36 | differential and integral geometry | → 531 ≈ :M.2 |
| ↑ | 516.5 | projective geometry | ≈ :J.1 |
| ↑ | 516.6 | abstract descriptive geometry | ≈ :J.1 |
| ↑ | 518 | numerical analysis | → 519.4 |
| ↑ | 518.4 | numerical methods in algebra and in number theory | ≈ :O.3 |
| ↑ | 518.5 | numerical approximation | → 511.4 ≈ :O.2 |
| ↑ | 518.6 | numerical methods in analysis | → 3 515 |
| ↑ | 518.63 | numerical solutions of ordinal differential equations | → 515.352 ≈ :O.4 |
| ↑ | 518.64 | numerical solutions of partial differential equations | → 515.353 ≈ :O.5 |
| ↑ | 519 | probability, statistics, applied maths | → 610.72 ≈ :N.0 S.SPEC.42.GB |
| ↑ | 519.2 | probability | ≈ :N.1 |
| ↑ | 519.23 | stochastic processes, Markov chains, martingales | |
| ↑ | 519.3 | game theory | ≈ :R.2 |
| ↑ | 519.4 | applied numerical analysis, finite elements, MATLAB | → 4 510.285 518 |
| ↑ | 519.5 | mathematical statistics | → 310 338.54 ≈ :N.2 |
| ↑ | 519.53 | descriptive statistics, multivariate analysis | → 658.403 |
| ↑ | 519.6 | mathematical optimization | → 3 ≈ :O.7 OM1 |
| ↑ | 519.7 | programming theory, operations research | → 005.1 658.4 ≈ R.1 |
| ↑ | 519.8 | mathematical methods of sciences | → 368 ≈ :Q.0 |
| 52 | astronomy | |
| ↑ | 520 | astronomy generally | |
| ↑ | 523.44 | asteroids | ≈ `10H |
| ↑ | 526 | mathematical geography, topography | → 711 912 |
| ↑ | 526.9 | surveying | → 550.28 |
| 53 | physics | |
| ↑ | 530 | physics in general | → 612.014 ≈ `60D |
| ↑ | 530.021 | physics tables | |
| ↑ | 530.092 | physicists | |
| ↑ | 530.1 | theoretical and mathematical physics | ≈ `60C |
| ↑ | 530.11 | relativity | ≈ :ZA.6 |
| ↑ | 530.12 | quantum physics | ≈ :ZA.8 |
| ↑ | 530.13 | statistical mechanics | → 536.7 ≈ :ZA.10 |
| ↑ | 530.14 | fields and waves | → 621.3813 |
| ↑ | 530.15 | mathematical physics | → 531 ≈ :ZA.0 |
| ↑ | 530.4 | states of matter | |
| ↑ | 530.41 | solid state physics | |
| ↑ | 530.415 | mass diffusion and transfer | |
| ↑ | 530.42 | liquid state physics | → 532 |
| ↑ | 530.44 | plasma and ionized gas physics | |
| ↑ | 530.8 | measurement | → 681.2 |
| ↑ | 531 | classical mechanics, continuum mechanics | → 516.36 530.15 620.1 ≈ :ZA.1 |
| ↑ | 531.1 | mechanics, statics | |
| ↑ | 531.16 | particle mechanics | ≈ :ZA.2 |
| ↑ | 531.3 | solid dynamics | → 624 ≈ :ZA.3 |
| ↑ | 531.6 | energy | |
| ↑ | 532 | fluid mechanics | → 530.42 551.48 ≈ :ZA.4 |
| ↑ | 532.05 | fluid dynamics | → 551.303 |
| ↑ | 533 | gas mechanics | |
| ↑ | 534 | sound and vibrations | → 620.2 |
| ↑ | 535 | optics | → 621.36 ≈ :ZA.7 |
| ↑ | 535.8 | optical spectroscopy in infrared and ultraviolet | |
| ↑ | 536 | thermology | |
| ↑ | 536.5 | temperature | |
| ↑ | 536.56 | cryogeny, low temperatures | |
| ↑ | 536.7 | thermodynamics | → 530.13 541.369 621.4 ≈ :ZA.5 |
| ↑ | 537 | electromagnetism | → 621.3 ≈ :ZA.7 |
| ↑ | 537.535 | X and gamma rays electronics | → 539.722 |
| ↑ | 537.62 | conductivity and electric resistance | |
| ↑ | 538 | magnetism | |
| ↑ | 538.36 | magnetic resonance | → 610.28 |
| ↑ | 538.362 | NMR: nuclear magnetic resonance | |
| ↑ | 538.364 | EPR: electronic paramagnetic resonance | |
| ↑ | 539 | modern physics | |
| ↑ | 539.2 | radiations | → 621.382 |
| ↑ | 539.7 | atomic and nuclear physics | → 621.48 ≈ :ZA.9 |
| ↑ | 539.72 | particle physics, ionizing radiations | |
| ↑ | 539.721 | neutrons and other particles | |
| ↑ | 539.722 | ionizing radiations, X, gamma and cosmic rays | → 537.535 |
| ↑ | 539.75 | nuclear interactions, radioactivity | |
| ↑ | 539.77 | particle and radioactivity detection and measure | |
| 54 | chemistry | |
| ↑ | 540 | chemistry in general | → 016.54 660.28 ≈ `59A S.SPEC.36.CB |
| ↑ | 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 | → 660.29 ≈ `60A |
| ↑ | 541.042 | matter state chemistry, solid state | |
| ↑ | 541.2 | theoretic chemistry | |
| ↑ | 541.22 | molecular structure | ≈ `60B |
| ↑ | 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 | ≈ `59H |
| ↑ | 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 | → 536.7 |
| ↑ | 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 | → 6 |
| ↑ | 542.8 | auxiliary and electronic facilities, data processing | |
| ↑ | 543 | analytical chemistry | ≈ `59B |
| ↑ | 543.08 | spectroscopy, chromatography [outdated number] | |
| ↑ | 543.1 | bromatological analysis | ≈ S.SPEC.36.CC |
| ↑ | 543.17 | organic analytical chemistry | |
| ↑ | 543.2 | classical methods | ≈ `59D |
| ↑ | 543.22 | microchemistry | ≈ `59C |
| ↑ | 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 | → 551.9 572.51 |
| ↑ | 546.2 | hydrogen and its compounds | |
| ↑ | 546.24 | acids | |
| ↑ | 546.3 | metals, metallic compounds, alloys | → 620.16 669 |
| ↑ | 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 | ≈ `59G |
| ↑ | 547.002 | techniques, devices, equipment | |
| ↑ | 547.007 | exercices and auxiliary materials in organic chemistry | |
| ↑ | 547.01 | hydrocarbons | → 547.41 |
| ↑ | 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 | → 547.01 |
| ↑ | 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 | → 620.19 668.9 |
| ↑ | 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 | ≈ `47A `47C |
| ↑ | 548.021 | formulas | |
| ↑ | 548.3 | crystallochemistry | ≈ `48BC `58E |
| ↑ | 548.5 | crystallization | |
| ↑ | 548.7 | mathematical crystallography | ≈ `48BD |
| ↑ | 548.8 | physical and structural crystallography | ≈ `47B `47H |
| ↑ | 548.81 | structural crystallography | |
| ↑ | 548.83 | diffractometric methods | |
| ↑ | 548.9 | optical crystallography | ≈ `47F `48B |
| ↑ | 549 | mineralogy | → 552 ≈ `25B `44C |
| ↑ | 549.1 | determinative mineralogy | ≈ `49F `49H |
| ↑ | 549.6 | silicates | ≈ `45H |
| ↑ | 549.67 | phyllosilicates, clay minerals | → 553.6 ≈ `32G |
| ↑ | 549.9 | geography of minerals | ≈ `45B `45C |
| 55 | Earth science | |
| ↑ | 550 | Earth science in general | |
| ↑ | 550.11 | models in Earth science | ≈ `18B |
| ↑ | 550.28 | remote sensing | → 006.6 526.9 621.367 910.28 ≈ `17C OE11 |
| ↑ | 551 | geology and hydrology | → 622 ≈ :ZA.12 `30AR |
| ↑ | 551.072 | geological survey | → 912 ≈ `17B `21A |
| ↑ | 551.1 | Earth structure and properties | ≈ `19A `24A |
| ↑ | 551.2 | volcanoes, earthquakes, thermal water and gases | → 904.5 |
| ↑ | 551.21 | volcanology | ≈ `21F |
| ↑ | 551.22 | seismology, earthquakes | → 620.3 624176 ≈ `21E `24B |
| ↑ | 551.23 | thermal water and gases | ≈ `23E `31G |
| ↑ | 551.3 | surface processes, rock fall, landslides | → 624.151 631.4 ≈ `20D `32E |
| ↑ | 551.303 | sediment transportation and deposit | → 532.05 627.1 |
| ↑ | 551.31 | glaciology | ≈ `13D |
| ↑ | 551.4 | geomorphology and hydrosphere | |
| ↑ | 551.41 | geomorphology | → 910.02 ≈ `12A GE4 |
| ↑ | 551.46 | oceanography, underwater geology | ≈ `11B |
| ↑ | 551.48 | hydrology, surface waters | → 532 627 ≈ `10B |
| ↑ | 551.483 | rivers, streams | |
| ↑ | 551.489 | floods | |
| ↑ | 551.49 | hydrogeology, ground waters | → 628.1 ≈ `10A |
| ↑ | 551.5 | meteorology | ≈ S.SPEC.39.EA |
| ↑ | 551.6 | climatology, weather | ≈ `13A |
| ↑ | 551.7 | historical geology | ≈ `17D `19B |
| ↑ | 551.8 | structural geology | ≈ `18A `19C |
| ↑ | 551.9 | geochemistry | → 546 ≈ `10I `25A |
| ↑ | 552 | petrology | → 549 ≈ `25B |
| ↑ | 552.06 | rock composition, structure and analysis | ≈ `10C `10E |
| ↑ | 552.1 | igneous rocks | |
| ↑ | 552.4 | metamorphic rocks | |
| ↑ | 552.5 | sedimentary rocks | ≈ `29A `31A |
| ↑ | 553 | economic and applied geology, layers | → 622 ≈ `23B `23C |
| ↑ | 553.2 | hydrocarbons, fuels | ≈ `23A `23D |
| ↑ | 553.6 | clays, sands, salts | → 549.67 ≈ `32H |
| ↑ | 553.7 | water | |
| ↑ | 554 | Earth sciences of Europe | ≈ `15A `30AB |
| ↑ | 554.5 | Earth sciences of Italy | ≈ `15B `16B |
| ↑ | 554.51 | Earth sciences of Northern Italy and the Alps | ≈ `16A `30C |
| ↑ | 555 | Earth sciences of Asia | ≈ `14A |
| ↑ | 556 | Earth sciences of Africa | ≈ `14A `30F |
| ↑ | 557 | Earth sciences of Northern America | ≈ `14A |
| ↑ | 558 | Earth sciences of Southern America | ≈ `14A |
| ↑ | 559 | Earth sciences of Antarctica and islands | ≈ `14A |
| 56 | palaeontology | |
| ↑ | 560 | palaeobiology in general | ≈ `26A `31D |
| ↑ | 561 | palaeobotany and micropalaeontology | ≈ S.SPEC.40.ED `26B |
| ↑ | 562 | invertebrate palaeontology | ≈ `27A `27B |
| ↑ | 567 | fossil fishes, amphibians and reptiles | ≈ `28B |
| ↑ | 568 | fossil birds | ≈ `28B |
| ↑ | 569 | fossil mammals | ≈ `28B |
| ↑ | 569.9 | fossil hominids | → 599.9 |
| 57 | biology | → 660 |
| ↑ | 570 | general biology | ≈ S.SPEC.30.BC |
| ↑ | 570.12 | biological systematics | |
| ↑ | 571 | physiology in general | → 612 |
| ↑ | 571.1 | animal physiology | ≈ S.SPEC.29.BB |
| ↑ | 571.2 | plant and microrganism physiology | → 581 ≈ S.SPEC.35.CA |
| ↑ | 571.3 | comparative anatomy | → 611 |
| ↑ | 571.31 | animal anatomy | → 591 |
| ↑ | 571.5 | histology | → 611.018 ≈ S.SPEC.29.BA |
| ↑ | 571.6 | cell biology | → 572.8 611.018 ≈ S.SPEC.29.BA |
| ↑ | 571.64 | membranes | |
| ↑ | 571.8 | reproduction, development, embryology | → 612.64 |
| ↑ | 571.9 | general pathology | → 616 |
| ↑ | 571.96 | immunology | |
| ↑ | 571.978 | carcinogenesis | → 616.99 |
| ↑ | 571.99 | parassitology | → 616.96 616.98 |
| ↑ | 572 | biochemistry | → 612.015 660.6 ≈ `59I S.SPEC.36.CB |
| ↑ | 572.2 | biochemistry of plants and microorganisms | → 581 |
| ↑ | 572.4 | metabolism | |
| ↑ | 572.49 | fermentation | → 663 |
| ↑ | 572.5 | various chemical substances | |
| ↑ | 572.51 | bioinorganic chemistry, trace elements | → 546 |
| ↑ | 572.56 | carbohydrates | |
| ↑ | 572.6 | proteins | |
| ↑ | 572.65 | protein components | |
| ↑ | 572.7 | enzymes | |
| ↑ | 572.8 | molecular biology, biochemical genetics | → 571.6 576.5 |
| ↑ | 573 | specific systems | |
| ↑ | 573.4 | endocrinology | |
| ↑ | 576 | genetics, evolution | → 579 599.93 |
| ↑ | 576.5 | general genetics | → 572.8 581.3 591.3 599.93 ≈ S.SPEC.29.BB |
| ↑ | 576.54 | variation, mutation | |
| ↑ | 576.58 | population genetics | → 577.8 |
| ↑ | 576.8 | evolution | ≈ S.SPEC.27.AQ |
| ↑ | 576.83 | origins of life | |
| ↑ | 577 | ecology | → 304.2 333.95 344 363.7 |
| ↑ | 577.6 | hydrobiology, freshwater ecology | ≈ S.SPEC.32.BI |
| ↑ | 577.8 | synecology, population biology | → 576.58 719 |
| ↑ | 577.85 | symbiosis and parasitism | |
| ↑ | 578 | natural history | |
| ↑ | 579 | microbiology, fungus, algae | → 576 616.01 ≈ S.SPEC.26.AM S.SPEC.30.BE |
| ↑ | 579.2 | virology | → 616.91 ≈ S.SPEC.32.BG |
| ↑ | 579.3 | prokaryotes, bacteria | → 616.92 632.32 |
| ↑ | 579.5 | fungus, mycology | → 616.969 ≈ MICOL. Sez.Mic |
| ↑ | 579.52 | | |
| ↑ | 579.53 | | → 581.2 |
| ↑ | 579.54 | | |
| ↑ | 579.55 | | |
| ↑ | 579.56 | | |
| ↑ | 579.563 | | → 664 |
| ↑ | 579.57 | | |
| ↑ | 579.59 | | |
| ↑ | 579.6 | mushrooms | |
| ↑ | 579.7 | | |
| ↑ | 579.8 | algae | ≈ S.SPEC.19.AA |
| 58 | botany | |
| ↑ | 580 | botany in general | → 630 ≈ S.SPEC.20.AC |
| ↑ | 580.12 | systematic botany | ≈ S.FLORE.G |
| ↑ | 580.73 | botanical gardens | ≈ S.SPEC.20.AB |
| ↑ | 580.74 | botanical museums, herbariums | |
| ↑ | 580.9 | history of botany | ≈ S.SPEC.20.AB |
| ↑ | 581 | plant characters, genetics and ecology | → 571.2 572.2 |
| ↑ | 581.3 | plant genetics and physiology | → 576.5 631.52 |
| ↑ | 581.6 | plant uses and effects | |
| ↑ | 581.634 | medicinal plants | → 615.321 |
| ↑ | 581.7 | plants of special environments, plant ecology | → 577 ≈ S.SPEC.24.AH |
| ↑ | 581.9 | phytogeography, floras | ≈ S.SPEC.24.AH S.FLORE |
| ↑ | 581.94 | plants of Europe | ≈ S.FLORE.H S.FLORE.I |
| ↑ | 581.945 | plants of Italy | ≈ S.FLORE.C |
| ↑ | 581.95 | plants of Asia | ≈ S.FLORE.F |
| ↑ | 581.955 | plants of Iran | ≈ S.FLORE.M |
| ↑ | 581.96 | plants of Africa | ≈ S.FLORE.L |
| ↑ | 581.97 | plants of North and Central America | ≈ S.FLORE.M S.SPEC.41.FC |
| ↑ | 581.98 | plants of South America | ≈ S.FLORE.N S.SPEC.41.FB |
| ↑ | 582 | phanerogams, spermatophytes | → 635.9 |
| ↑ | 582.0463 | flowers and their parts | ≈ S.SPEC.28.AR |
| ↑ | 586 | cryptogams | ≈ S.SPEC.25.AL S.SPEC.26.AN |
| 59 | zoology | |
| ↑ | 590 | zoology in general | ≈ S.SPEC.31.BE |
| ↑ | 591 | animal biology | → 571.31 |
| ↑ | 591.3 | animal genetics | → 576.5 |
| ↑ | 591.5 | ethology | → 304.5 |
| ↑ | 591.59 | animal communication | |
| ↑ | 592 | lower invertebrates, worms | |
| ↑ | 595 | entomology, arthropods | → 614.17 632.7 |
| ↑ | 597 | cold-blooded vertebrates, fish | |
| ↑ | 597.9 | amphibians and reptiles | |
| ↑ | 598 | birds | |
| ↑ | 599 | mammals | |
| ↑ | 599.9 | humans, physical anthropology | → 320 569.9 |
| ↑ | 599.93 | human genetics and evolution | → 576 |
| ↑ | 599.935 | human genetics | → 320 576.5 616.04 |
| 6 | applied sciences | |
| 60 | technology | |
| ↑ | 600 | applied sciences in general | |
| ↑ | 602 | handbooks | |
| ↑ | 603 | technical dictionaries and encyclopaedias | → 423 503 |
| ↑ | 604 | technical drawing | → 720.284 |
| ↑ | 607 | education of technicians and engineers, research | → 378 620 |
| ↑ | 607.2 | technological research, statistical methods | |
| ↑ | 608 | patents | → 346.048 |
| ↑ | 609 | history of technology | → 620.009 |
| 61 | medicine | |
| ↑ | 610 | medicine in general | → 174.2 780.061 ≈ S.SPEC.33.BL |
| ↑ | 610.15 | biomedical models | |
| ↑ | 610.153 | medical physics | |
| ↑ | 610.28 | biomedical instrumentation | → 538.36 616.075 660 |
| ↑ | 610.285 | computer applications for medicine | → 006 |
| ↑ | 610.69 | medical staff | → 344.041 |
| ↑ | 610.72 | medical statistics | → 519 |
| ↑ | 610.73 | nursing | |
| ↑ | 611 | human anatomy | → 571.3 616 |
| ↑ | 611.018 | human cytology and histology | → 571.5 571.6 |
| ↑ | 611.1 | anatomy of the circulatory system | → 612.1 616.1 |
| ↑ | 611.2 | anatomy of the respiratory system | → 612.2 616.2 |
| ↑ | 611.3 | anatomy of the digestive system | → 612.3 616.3 |
| ↑ | 611.6 | anatomy of the urinary system | → 612.6 616.6 |
| ↑ | 611.7 | anatomy of the muscular and skeletal system | → 612.7 616.7 |
| ↑ | 611.8 | nervous system anatomy | → 152 612.8 616.8 |
| ↑ | 612 | human physiology | → 571 |
| ↑ | 612.014 | biophysics, radiobiology | → 530 |
| ↑ | 612.015 | medical biological chemistry | → 572 |
| ↑ | 612.1 | physiology of circulatory system | → 611.1 616.1 |
| ↑ | 612.2 | pneumology | → 611.2 616.2 |
| ↑ | 612.3 | physiology of digestive system | → 611.3 616.3 641 |
| ↑ | 612.4 | endocrine system | → 616.4 |
| ↑ | 612.6 | human reproduction and growth | → 611.6 616.6 |
| ↑ | 612.64 | human embryology | → 571.8 |
| ↑ | 612.7 | bones, muscles and movement, biomechanics | → 611.7 613.7 616.7 620.1 |
| ↑ | 612.8 | nervous system physiology | → 152 611.8 615.78 616.8 |
| ↑ | 612.804 | neurochemistry, cerebrospinal fluid | |
| ↑ | 613 | hygiene, health | |
| ↑ | 613.2 | nutrition | |
| ↑ | 613.62 | occupational medicine | |
| ↑ | 613.7 | physical fitness | → 612.7 796 |
| ↑ | 613.8 | abuse of substances | → 615.9 |
| ↑ | 614 | public health | → 344 362.1 725.5 |
| ↑ | 614.1 | legal medicine, forensic pathology | → 363.25 |
| ↑ | 614.17 | forensic anthropology and entomology | → 364 595 |
| ↑ | 615 | pharmacology, terapeutics | → 344.042 |
| ↑ | 615.1 | drugs | |
| ↑ | 615.10033 | drugs and economics | → 338 |
| ↑ | 615.11 | pharmacopoeia | |
| ↑ | 615.19 | pharmaceutical chemistry and technology | → 660.6 |
| ↑ | 615.1901 | pharmaceutical chemical analysis | |
| ↑ | 615.19C | pharmaceutical chemistry | |
| ↑ | 615.19T | pharmaceutical technology | |
| ↑ | 615.3 | organic drugs | |
| ↑ | 615.321 | plant-derived drugs, phytotherapy, pharmacognosis | → 581.634 ≈ S.SPEC.22.AF |
| ↑ | 615.328 | vitamins | |
| ↑ | 615.329 | drugs from microorganisms, fungi, algae, antibiotics | ≈ S.SPEC.37.CE |
| ↑ | 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 | → 612.8 616.891 |
| ↑ | 615.8 | therapies, radio- and chemiotherapy | |
| ↑ | 615.9 | toxicology
| → 613.8 |
| ↑ | 615.902 | industrial toxicology | → 363.7 |
| ↑ | 616 | pathology, clinics, internal medicine | → 571.9 611 |
| ↑ | 616.007 | studying, admittance exams | |
| ↑ | 616.01 | medical microbiology | → 579 |
| ↑ | 616.025 | urgent diseases | |
| ↑ | 616.042 | medical genetics | → 599.935 |
| ↑ | 616.07 | physiopathology | |
| ↑ | 616.075 | diagnosis and prognosis, bioimages | → 610.28 |
| ↑ | 616.0756 | chemical diagnosis, clinical chemistry | |
| ↑ | 616.079 | immunology | |
| ↑ | 616.1 | cardiovascular diseases | → 611.1 612.1 617.41 |
| ↑ | 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 | → 611.2 612.2 618.922 |
| ↑ | 616.3 | gastroenterology | → 611.3 612.3 |
| ↑ | 616.39 | obesity | |
| ↑ | 616.4 | endocrinology | → 612.4 |
| ↑ | 616.5 | dermatology | |
| ↑ | 616.6 | nephrology | |
| ↑ | 616.7 | orthopedics | → 612.7 617.3 617.47 |
| ↑ | 616.72 | arthritis, rheumatism | |
| ↑ | 616.8 | neurology | → 612.8 617.48 618.928 |
| ↑ | 616.89 | psychiatry | → 153 |
| ↑ | 616.891 | therapy, drug therapy | → 615.78 |
| ↑ | 616.9 | oncology and infectuous diseases | → 618.929 ≈ S.SPEC.23.AF |
| ↑ | 616.91 | viral diseases | → 579.2 |
| ↑ | 616.92 | bacterial diseases | → 579.3 |
| ↑ | 616.96 | parasitosis and mycosis | → 571.99 |
| ↑ | 616.969 | mycosis, fungal diseases | → 579.5 |
| ↑ | 616.97 | allergology | |
| ↑ | 616.98 | environmental and climate diseases | → 571.99 |
| ↑ | 616.99 | tumours | → 571.978 |
| ↑ | 616.994 | cancers, chemiotherapy | |
| ↑ | 616.99465 | female cancers | → 618.1 |
| ↑ | 617 | surgery, prostheses | |
| ↑ | 617.05 | surgical tools and techniques | → 617.9 |
| ↑ | 617.1 | traumatology | |
| ↑ | 617.3 | orthopedics | → 616.7 |
| ↑ | 617.41 | cardiovascular surgery | → 616.1 |
| ↑ | 617.47 | orthopedic surgery | → 616.7 |
| ↑ | 617.48 | neural surgery | → 616.8 |
| ↑ | 617.6 | dentistry | |
| ↑ | 617.7 | ophthalmology | |
| ↑ | 617.89 | hearing correction | ≈ 617.89 |
| ↑ | 617.9 | surgery techniques | → 617.05 618.1059 |
| ↑ | 617.96 | anaesthetic | |
| ↑ | 618 | gynecology, obstetrics, pediatrics, geriatrics | |
| ↑ | 618.1 | gynecology | → 616.99465 |
| ↑ | 618.1059 | gynecological surgical techniques | → 617.9 |
| ↑ | 618.9 | pediatrics and geriatrics | |
| ↑ | 618.92 | pediatrics | |
| ↑ | 618.922 | pediatric diseases of the respiratory tract | → 616.2 |
| ↑ | 618.928 | pediatric diseases of nervous system | → 616.8 |
| ↑ | 618.929 | contagious diseases | → 616.9 |
| ↑ | 618.97 | geriatrics | |
| 62 | engineering | |
| ↑ | 620 | engineering in general | → 607 |
| ↑ | 620.0042 | engineering design, AutoCAD | → 006.6 |
| ↑ | 620.009 | history of engineering | → 609 |
| ↑ | 620.1 | mechanics and materials | → 531 612.7 621.8 624.1 |
| ↑ | 620.11 | materials, tests, alteration | → 363.1 681.2 |
| ↑ | 620.112 | material properties, tests | → 624.171 ≈ :ZA.3 |
| ↑ | 620.13 | walling materials | → 624.183 693.5 |
| ↑ | 620.14 | ceramics, bricks and analogous materials | → 666 ≈ `32H |
| ↑ | 620.16 | metals | → 546.3 624.182 669 |
| ↑ | 620.17 | iron, steel | → 624.182 |
| ↑ | 620.19 | other materials, polymers | → 547.7 668.9 |
| ↑ | 620.2 | applied acoustics | → 534 |
| ↑ | 620.3 | mechanic vibration | → 551.22 624.176 |
| ↑ | 620.4 | fine particle and surface technology | |
| ↑ | 620.5 | nanotechnology | |
| ↑ | 620.8 | ergonomy | |
| ↑ | 621 | applied physics | |
| ↑ | 621.2 | hydraulic machinery | → 627 |
| ↑ | 621.3 | electrotechnics | → 537 |
| ↑ | 621.31 | electrical energy | → 333.7 |
| ↑ | 621.312 | generation, transformation, accumulation | |
| ↑ | 621.317 | control devices | |
| ↑ | 621.319 | transmission, electrical plants | |
| ↑ | 621.32 | electric enlightenment | ≈ 729.28 |
| ↑ | 621.36 | optical engineering | → 006.6 535 |
| ↑ | 621.366 | lasers | |
| ↑ | 621.367 | technical photography, photoptics | → 550.28 |
| ↑ | 621.369 | fiber, integrated, nonlinear optics | → 621.3827 |
| ↑ | 621.37 | tests and measures of electrical quantities | |
| ↑ | 621.38 | electronic and communication engineering | |
| ↑ | 621.381 | electronics | |
| ↑ | 621.381045 | photodetectors | |
| ↑ | 621.3813 | microwaves | → 530.14 |
| ↑ | 621.3815 | components and circuits, CMOSs | → 621.395 681 |
| ↑ | 621.38152 | semiconductors | |
| ↑ | 621.38154 | photoelectric, test and measure components | |
| ↑ | 621.3817 | microelectronics | |
| ↑ | 621.382 | communication engineering | → 539.2 |
| ↑ | 621.3822 | signal processing | |
| ↑ | 621.3824 | antennas and propagation | |
| ↑ | 621.3825 | relays, satellites | |
| ↑ | 621.3827 | optical communication and fibers | → 621.369 |
| ↑ | 621.384 | radios, radars | |
| ↑ | 621.39 | computer engineering | → 4 |
| ↑ | 621.395 | logical networks, VLSI | → 621.3815 681 |
| ↑ | 621.398 | interfaces, communication, devices | |
| ↑ | 621.4 | heat engineering, engines | → 536.7 |
| ↑ | 621.46 | electric motors | |
| ↑ | 621.47 | solar energy engineering | → 720.47 |
| ↑ | 621.48 | nuclear engineering | → 539.7 |
| ↑ | 621.5 | pneumatics, void, low temperatures | |
| ↑ | 621.8 | machinery engineering | → 620.1 |
| ↑ | 621.89 | tribology | |
| ↑ | 621.9 | tools | |
| ↑ | 621483 | nuclear reactors and power plants | |
| ↑ | 622 | mining engineering | → 338.2 553 ≈ `8Bmin `8Fmin |
| ↑ | 622.2 | excavation techniques | ≈ `23F |
| ↑ | 622.3 | mining special minerals | ≈ `8Cmin |
| ↑ | 622.33 | hydrocarbons excavation | → 338.2728 |
| ↑ | 623 | military and naval engineering | → 355 |
| ↑ | 624 | civil engineering | → 531.3 690 |
| ↑ | 624.1 | structural engineering and underground building technology | ≈ `20A |
| ↑ | 624.15 | building technology | ≈ `20B `20F |
| ↑ | 624.151 | geotechnics, soil mechanics | → 551.3 ≈ `20G `22A |
| ↑ | 624.17 | structural systems, building science | → 519.4 620.1 |
| ↑ | 624.171 | structural analysis | → 620.112 |
| ↑ | 624.176 | seismic engineering | → 363.3 551.22 620.3 693.85 |
| ↑ | 624.18 | materials | → 691 |
| ↑ | 624.182 | metal structures: iron, steel, aluminium | → 620.16 620.17 669 693.7 |
| ↑ | 624.183 | masonry structures | → 620.13 |
| ↑ | 624.184 | wooden structures | → 694 |
| ↑ | 624.2 | bridges | → 725 |
| ↑ | 625 | railway and road engineering | → 711.7 725.3 |
| ↑ | 625.1 | railways | → 385 |
| ↑ | 625.7 | roads | → 629.2 |
| ↑ | 627 | hydraulic engineering | → 551.48 621.2 |
| ↑ | 627.1 | inland waters | → 551.303 714 |
| ↑ | 627.12 | streams | |
| ↑ | 627.13 | canals | → 386.4 |
| ↑ | 627.14 | lakes | |
| ↑ | 627.2 | harbours | |
| ↑ | 627.5 | land improvement and irrigation | → 631.5 |
| ↑ | 627.54 | drainage | |
| ↑ | 627.8 | dams and reservoirs | |
| ↑ | 628 | sanitary engineering, sewers, wastewater | → 696 |
| ↑ | 628.1 | water provision | → 551.49 |
| ↑ | 628.16 | analysis, treatment, countermeasures to pollution | → 363.7 628.5 |
| ↑ | 628.2 | sewers | |
| ↑ | 628.3 | wastewater treatment and disposal | |
| ↑ | 628.4 | trash | ≈ AM4 |
| ↑ | 628.5 | pollution control techniques | → 363.7 628.16 ≈ S.SPEC.37.CF |
| ↑ | 628.53 | air pollution | |
| ↑ | 628.9 | fire prevention | → 363.1 ≈ AR16 |
| ↑ | 629 | transport engineering, automatic controls | → 711.4 |
| ↑ | 629.1 | aerospace engineering | → 358.4 |
| ↑ | 629.2 | land vehicles | → 343.094 625.7 |
| ↑ | 629.4 | astronautics | |
| ↑ | 629.8 | automatic control engineering | → 003.5 006.3 152 |
| 63 | agriculture | |
| ↑ | 630 | agriculture in general | → 338.1 343.076 580 ≈ S.SPEC.21.AE |
| ↑ | 631 | techniques, tools, materials | |
| ↑ | 631.4 | soil science | → 551.3 ≈ S.SPEC.40.EB |
| ↑ | 631.5 | cultivation and harvesting | → 627.5 |
| ↑ | 631.52 | seed and variety production, agricultural genetics | → 581.3 |
| ↑ | 631.53 | plant breeding | |
| ↑ | 632 | plant pathology, biological and chemical control | → 581 668.6 ≈ S.SPEC.34.HA |
| ↑ | 632.32 | bacterial diseases of plants | → 579.3 ≈ S.SPEC.21.AD |
| ↑ | 632.7 | noxious insects, agricultural entomology | → 595 |
| ↑ | 632.9 | pesticides | ≈ S.SPEC.27.AP |
| ↑ | 632.95 | pesticides | → 363.7 |
| ↑ | 633 | field and plantation crops | |
| ↑ | 633.1 | grain growth | ≈ S.SPEC.28.AT |
| ↑ | 633.5 | fiber cultivations | → 338.17 |
| ↑ | 633.7 | cultivation of alkaloid plants, tobacco, cacao | ≈ S.SPEC.23.AG S.SPEC.25.AI |
| ↑ | 634 | arboriculture, fruit farming | ≈ S.SPEC.27.AO |
| ↑ | 634.8 | viticulture | → 663.2 |
| ↑ | 635 | horticulture, vegetables, gardening | ≈ S.FLORE.A |
| ↑ | 635.9 | floriculture, ornamental plants | → 582 712 ≈ S.FLORE.B |
| ↑ | 636 | husbandry, breeding | ≈ S.SPEC.32.BF |
| ↑ | 639.9 | conservation | → 333.72 |
| 64 | home management, food | |
| ↑ | 641 | food, hunting and fishing | → 612.3 664 |
| 65 | business, management | → 338 |
| ↑ | 658 | organization and management | → 338 |
| ↑ | 658.4 | executive management | → 519.7 ≈ :R.1 |
| ↑ | 658.401 | planning, control | → 658.5 |
| ↑ | 658.403 | decisions, information management | → 006.31 153.8 519.53 |
| ↑ | 658.5 | production, quality control
| → 658.401 |
| ↑ | 658.8 | distribution, sale, marketing, e-business | |
| 66 | applied chemistry, food technology | |
| ↑ | 660 | laboratory techniques, biotechnology in general | → 572 610.28 ≈ `59E |
| ↑ | 660.28 | chemical plants and activities | → 540 |
| ↑ | 660.284 | unit operations and processes | |
| ↑ | 660.29 | applied physical chemistry, electrochemistry | → 541 |
| ↑ | 660.6 | biotechnology | → 615.19 |
| ↑ | 663 | beverage technology | → 572.49 |
| ↑ | 663.2 | oenology | → 634.8 ≈ S.SPEC.28.AS |
| ↑ | 664 | food technology | → 344.042 579.563 641 |
| ↑ | 666 | ceramic and analogous technologies | → 620.14 738 |
| ↑ | 666.1 | glass | |
| ↑ | 666.7 | refractory materials, building clay products | |
| ↑ | 667 | technology of cleaning, colour and upholstery | → 729 |
| ↑ | 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 | → 632 |
| ↑ | 668.9 | polymers | → 547.7 620.19 |
| ↑ | 669 | metallurgy | → 546.3 620.16 624.18 671 ≈ `59F |
| ↑ | 669.9 | chemical and physical metallurgy | |
| 67 | manufacturing | |
| ↑ | 671 | metal processing, galvanoplastics | → 669 |
| ↑ | 677 | textiles | |
| ↑ | 681 | precision instruments | → 621.3815 |
| ↑ | 681.2 | test and measurement tools, sensors | → 530.8 620.11 |
| ↑ | 686 | printing | |
| 69 | building | |
| ↑ | 690 | building in general | → 624 720 |
| ↑ | 690.1 | structural elements | → 721 |
| ↑ | 690.16 | lofts | |
| ↑ | 690.18 | openings, doors and windows | → 729.28 |
| ↑ | 690.2 | activities on buildings | → 346.045 ≈ AR18 |
| ↑ | 690.22 | safety actions in building | → 344 ≈ AR24 |
| ↑ | 690.24 | maintenance and restoration | |
