APA (7th ed.) Citation

Hagen, F. Archivmaterialien zu Friedrich Hagen, 1903-1979.

Chicago Style (17th ed.) Citation

Hagen, Friedrich. Archivmaterialien Zu Friedrich Hagen, 1903-1979.

MLA (9th ed.) Citation

Hagen, Friedrich. Archivmaterialien Zu Friedrich Hagen, 1903-1979.

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