Cita APA (7th ed.)

De Blij, H. J., & Muller, P. O. (2010). Geography: Realms, regions, and concepts (14th ed.). Wiley.

Cita Chicago (17th ed.)

De Blij, Harm J., i Peter O. Muller. Geography: Realms, Regions, and Concepts. 14th ed. Hoboken, N.J: Wiley, 2010.

Cita MLA (9th ed.)

De Blij, Harm J., i Peter O. Muller. Geography: Realms, Regions, and Concepts. 14th ed. Wiley, 2010.