APA (7th ed.) Citation

Ritter, R. Archivmaterialien zu Robert Ritter, 1901-1951.

Chicago Style (17th ed.) Citation

Ritter, Robert. Archivmaterialien Zu Robert Ritter, 1901-1951.

MLA (9th ed.) Citation

Ritter, Robert. Archivmaterialien Zu Robert Ritter, 1901-1951.

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