Zapp, P. (2019). Archivmaterialien zu Paul Zapp, 1904-.
Chicago Style (17th ed.) CitationZapp, Paul. Archivmaterialien Zu Paul Zapp, 1904-. 2019.
MLA (8th ed.) CitationZapp, Paul. Archivmaterialien Zu Paul Zapp, 1904-. 2019.
Warning: These citations may not always be 100% accurate.