APA (7e ed.) Bronvermelding

De Blij, H. J., & Muller, P. O. (1993). Physical geography of the global environment. Wiley.

Chicago (17e ed.) Bronvermelding

De Blij, Harm J., en Peter O. Muller. Physical Geography of the Global Environment. New York: Wiley, 1993.

MLA (8e ed.) Bronvermelding

De Blij, Harm J., en Peter O. Muller. Physical Geography of the Global Environment. Wiley, 1993.