Cita APA (7th ed.)

Glasmeier, M., & Binder, U. (1997). Was ist. Salon Verl..

Cita Chicago (17th ed.)

Glasmeier, Michael, i Ursula Binder. Was Ist. Köln: Salon Verl., 1997.

Cita MLA (8th ed.)

Glasmeier, Michael, i Ursula Binder. Was Ist. Salon Verl., 1997.