Janssen, K. (2019). Archivmaterialien zu Karl Janssen, 1912-1984.
Chicago Style (17th ed.) CitationJanssen, Karl. Archivmaterialien Zu Karl Janssen, 1912-1984. 2019.
MLA (8th ed.) CitationJanssen, Karl. Archivmaterialien Zu Karl Janssen, 1912-1984. 2019.
Warning: These citations may not always be 100% accurate.