APA (7th ed.) Citation

Echterhölter, R. Archivmaterialien zu Rudolf Echterhölter.

Chicago Style (17th ed.) Citation

Echterhölter, Rudolf. Archivmaterialien Zu Rudolf Echterhölter.

MLA (9th ed.) Citation

Echterhölter, Rudolf. Archivmaterialien Zu Rudolf Echterhölter.

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