621.32
729.28
See also:
↑ 729.28 lighting → 621.32 690.18 ↑ IE3 illuminating engineering ≈ 621.32
621.32 690.18
IE3
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