APA (7th ed.) Citation

Knopp, G. Damals . Dt. Verlags-Anstalt.

Chicago Style (17th ed.) Citation

Knopp, Guido. Damals . Stuttgart: Dt. Verlags-Anstalt.

MLA (8th ed.) Citation

Knopp, Guido. Damals . Dt. Verlags-Anstalt.

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