RKDartists, rkd.nl, besøkt 29. september 2017[Hentet fra Wikidata]
uni-stuttgart.de
uni-stuttgart.de
The Stuttgart Database of Scientific Illustrators 1450–1950, «Pierre Jacques Cazes», Stuttgart Database of Scientific Illustrators ID 3811[Hentet fra Wikidata]
dsi.hi.uni-stuttgart.de
The Stuttgart Database of Scientific Illustrators 1450–1950, «Pierre Jacques Cazes», Stuttgart Database of Scientific Illustrators ID 3811[Hentet fra Wikidata]