See also:
↑ 633.7cultivation of alkaloid plants, tobacco, cacao ≈ S.SPEC.23.AG S.SPEC.25.AI
633.7
S.SPEC.23.AG
S.SPEC.25.AI
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