APA (7th ed.) Citation

Knopf, O. Archivmaterialien zu Otto Knopf, 1856-1945.

Chicago Style (17th ed.) Citation

Knopf, Otto. Archivmaterialien Zu Otto Knopf, 1856-1945.

MLA (9th ed.) Citation

Knopf, Otto. Archivmaterialien Zu Otto Knopf, 1856-1945.

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