Cita APA (7a ed.)

Kudielka, R., & Binder, U. (1997). Was ist. Salon Verl..

Cita Chicago Style (17a ed.)

Kudielka, Robert, y Ursula Binder. Was Ist. Köln: Salon Verl., 1997.

Cita MLA (8a ed.)

Kudielka, Robert, y Ursula Binder. Was Ist. Salon Verl., 1997.