APA (7th ed.) Citation

Flierl, B., Heimers, M., & Hetzer, G. (2009). München 1812 - 1914.

Chicago Style (17th ed.) Citation

Flierl, Bertold, Manfred Heimers, and Gerhard Hetzer. München 1812 - 1914. 2009.

MLA (9th ed.) Citation

Flierl, Bertold, et al. München 1812 - 1914. 2009.