APA (7th ed.) Citation

Otto, R. Archivmaterialien zu Richard Otto, 1876-.

Chicago Style (17th ed.) Citation

Otto, Richard. Archivmaterialien Zu Richard Otto, 1876-.

MLA (9th ed.) Citation

Otto, Richard. Archivmaterialien Zu Richard Otto, 1876-.

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