Cita APA (7a ed.)

Büttner, W. (2009). Abitur-Training Geographie (Bayern, Gymnasium, G 8.). Stark.

Cita Chicago Style (17a ed.)

Büttner, Wilfried. Abitur-Training Geographie. Bayern, Gymnasium, G 8. Freising: Stark, 2009.

Cita MLA (9a ed.)

Büttner, Wilfried. Abitur-Training Geographie. Bayern, Gymnasium, G 8. Stark, 2009.