APA (7th ed.) Citation

Knopp, G., Deick, C., & Kisler, C. (2001). Hitlers Krieger. Bertelsmann.

Chicago Style (17th ed.) Citation

Knopp, Guido, Christian Deick, and Christine Kisler. Hitlers Krieger. München: Bertelsmann, 2001.

MLA (8th ed.) Citation

Knopp, Guido, et al. Hitlers Krieger. Bertelsmann, 2001.