APA (7th ed.) Citation

Berthold, L. (1964). Keller. Aufbau-Verlag.

Chicago Style (17th ed.) Citation

Berthold, Lothar. Keller. Berlin: Aufbau-Verlag, 1964.

MLA (8th ed.) Citation

Berthold, Lothar. Keller. Aufbau-Verlag, 1964.

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