Cita APA (7th ed.)

Keiper, E. (2007). Changing spaces. Modo-Verl..

Cita Chicago (17th ed.)

Keiper, Elke. Changing Spaces. Freiburg i. Br.: Modo-Verl., 2007.

Cita MLA (8th ed.)

Keiper, Elke. Changing Spaces. Modo-Verl., 2007.