551.7
17D
19B
See also:
↑ 17D historical geology ≈ 551.7 ↑ 19B stratigraphic geology ≈ 551.7
SciGator: explore University of Pavia libraries... — <http://scigator.unipv.it/indexe.php> : 2017.02.14 - 2024.10.29 - « <http://www-dimat.unipv.it/biblio/dewey.php> : 2015.06.18 - 2017