APA (7th ed.) Citation

Ruben, P. Archivmaterialien zu Paul Ruben, 1866-1943.

Chicago Style (17th ed.) Citation

Ruben, Paul. Archivmaterialien Zu Paul Ruben, 1866-1943.

MLA (9th ed.) Citation

Ruben, Paul. Archivmaterialien Zu Paul Ruben, 1866-1943.

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