Cita APA (7th ed.)

De Blij, H. J., & Muller, P. O. (2002). Geography: Realms, regions, and concepts (10th ed.). Wiley.

Cita Chicago (17th ed.)

De Blij, Harm J., i Peter O. Muller. Geography: Realms, Regions, and Concepts. 10th ed. New York: Wiley, 2002.

Cita MLA (9th ed.)

De Blij, Harm J., i Peter O. Muller. Geography: Realms, Regions, and Concepts. 10th ed. Wiley, 2002.