APA Citatie

Christopherson, R. W. (2006). Geosystems: An introduction to physical geography (6th ed.). Pearson.

Chicago Style citaat

Christopherson, Robert W. Geosystems: An Introduction to Physical Geography. 6th ed. New Jersey: Pearson, 2006.

MLA citatie

Christopherson, Robert W. Geosystems: An Introduction to Physical Geography. 6th ed. Pearson, 2006.

Let op: Deze citaties zijn niet altijd 100% accuraat.