Piper, E. (2019). Archivmaterialien zu Ernst Piper, 1952-.
Chicago Style (17th ed.) CitationPiper, Ernst. Archivmaterialien Zu Ernst Piper, 1952-. 2019.
MLA (8th ed.) CitationPiper, Ernst. Archivmaterialien Zu Ernst Piper, 1952-. 2019.
Warning: These citations may not always be 100% accurate.