APA (7th ed.) Citation

De Blij, H. J., & Muller, P. O. (2006). Geography: Realms, regions, and concepts (12th ed.). John Wiley & Sons.

Chicago Style (17th ed.) Citation

De Blij, Harm J., and Peter O. Muller. Geography: Realms, Regions, and Concepts. 12th ed. Hoboken, N.J: John Wiley & Sons, 2006.

MLA (8th ed.) Citation

De Blij, Harm J., and Peter O. Muller. Geography: Realms, Regions, and Concepts. 12th ed. John Wiley & Sons, 2006.