APA (7th ed.) Citation

Piper, O. (2019). Archivmaterialien zu Otto Piper, 1841-1921.

Chicago Style (17th ed.) Citation

Piper, Otto. Archivmaterialien Zu Otto Piper, 1841-1921. 2019.

MLA (9th ed.) Citation

Piper, Otto. Archivmaterialien Zu Otto Piper, 1841-1921. 2019.

Warning: These citations may not always be 100% accurate.