APA (7th ed.) Citation

Schäffer, F., & Promberger, A. (2012). Geschichte. Stark.

Chicago Style (17th ed.) Citation

Schäffer, Fritz, and Andreas Promberger. Geschichte. Freising: Stark, 2012.

MLA (9th ed.) Citation

Schäffer, Fritz, and Andreas Promberger. Geschichte. Stark, 2012.