APA (7th ed.) Citation

Keller, F. Archivmaterialien zu Ferdinand Keller, 1800-1881.

Chicago Style (17th ed.) Citation

Keller, Ferdinand. Archivmaterialien Zu Ferdinand Keller, 1800-1881.

MLA (9th ed.) Citation

Keller, Ferdinand. Archivmaterialien Zu Ferdinand Keller, 1800-1881.

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