APA (7th ed.) Citation

Frühsorge, J., Hamish, M., & Butin, H. (2009). Frank Badur. Kehrer.

Chicago Style (17th ed.) Citation

Frühsorge, Jan-Philipp, Morrison Hamish, and Hubertus Butin. Frank Badur. Kehrer, 2009.

MLA (8th ed.) Citation

Frühsorge, Jan-Philipp, et al. Frank Badur. Kehrer, 2009.

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