APA (7th ed.) Citation

Keidel, F. Archivmaterialien zu Friedrich Keidel, 1851-1938.

Chicago Style (17th ed.) Citation

Keidel, Friedrich. Archivmaterialien Zu Friedrich Keidel, 1851-1938.

MLA (9th ed.) Citation

Keidel, Friedrich. Archivmaterialien Zu Friedrich Keidel, 1851-1938.

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