APA (7th ed.) Citation

Frey, K. Archivmaterialien zu Karl Frey, 1942-2005.

Chicago Style (17th ed.) Citation

Frey, Karl. Archivmaterialien Zu Karl Frey, 1942-2005.

MLA (9th ed.) Citation

Frey, Karl. Archivmaterialien Zu Karl Frey, 1942-2005.

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