APA (7th ed.) Citation

Pörschmann, D., & Visser, M. (2012). Zero 4321. Richter/Fey Verl..

Chicago Style (17th ed.) Citation

Pörschmann, Dirk, and Mattijs Visser. Zero 4321. Düsseldorf: Richter/Fey Verl., 2012.

MLA (8th ed.) Citation

Pörschmann, Dirk, and Mattijs Visser. Zero 4321. Richter/Fey Verl., 2012.