668
668.1
668.4
668.5
668.6
632
668.9
547.7 620.19
See also:
↑ 547.7 macromolecules, polymers → 620.19 668.9 ↑ 620.19 other materials, polymers → 547.7 668.9 ↑ 632 plant pathology, biological and chemical control → 581 668.6 ≈ S.SPEC.34.HA
547.7
620.19 668.9
620.19
547.7 668.9
581 668.6 ≈ S.SPEC.34.HA
S.SPEC.34.HA
SciGator: explore University of Pavia libraries... — <http://scigator.unipv.it/indexe.php> : 2017.02.14 - 2024.11.12 - « <http://www-dimat.unipv.it/biblio/dewey.php> : 2015.06.18 - 2017