APA (7th ed.) Citation

Diekmann, K., & Kohl, H. (2010). Helmut Kohl. Collection Rolf Heyne.

Chicago Style (17th ed.) Citation

Diekmann, Kai, and Helmut Kohl. Helmut Kohl. München: Collection Rolf Heyne, 2010.

MLA (8th ed.) Citation

Diekmann, Kai, and Helmut Kohl. Helmut Kohl. Collection Rolf Heyne, 2010.

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