USA: Finding the Public Domain Toolkit: Identifying Items Not Subject to Copyright http://quod.lib.umich.edu/c/crmstoolkit/14616082.0001.001 Via http://www.lib.umich.edu/announcements/finding-public-domain-toolkit-identifying-items-not-subject-copyright Autor: Klaus Graf Historiker und Archivar, Blogger Alle Beiträge von Klaus Graf anzeigen