Cita APA (7a ed.)

Haff, M. C. (2009). Klaus Walter. Sandstein Verl..

Cita Chicago Style (17a ed.)

Haff, Marie Cathleen. Klaus Walter. Dresden: Sandstein Verl., 2009.

Cita MLA (8a ed.)

Haff, Marie Cathleen. Klaus Walter. Sandstein Verl., 2009.