APA (7th ed.) Citation

Jürgen Koch, H., Jürgen Koch, H., Rasper, M., & Vilalta, I. (2008). Animal affairs. H. F. Ullmann Publishing.

Chicago Style (17th ed.) Citation

Jürgen Koch, Heidi, Hans Jürgen Koch, Martin Rasper, and Isabel Vilalta. Animal Affairs. Barcelona: H. F. Ullmann Publishing, 2008.

MLA (9th ed.) Citation

Jürgen Koch, Heidi, et al. Animal Affairs. H. F. Ullmann Publishing, 2008.