APA (7th ed.) Citation

Hecker, O. A. Archivmaterialien zu Oswald Artur Hecker, 1879-1953.

Chicago Style (17th ed.) Citation

Hecker, Oswald Artur. Archivmaterialien Zu Oswald Artur Hecker, 1879-1953.

MLA (9th ed.) Citation

Hecker, Oswald Artur. Archivmaterialien Zu Oswald Artur Hecker, 1879-1953.

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