APA (7th ed.) Citation

De Blij, H. J., & Muller, P. O. (1988). Geography, regions and concepts (5th ed.). J. Wiley & Sons.

Chicago Style (17th ed.) Citation

De Blij, Harm J., and Peter O. Muller. Geography, Regions and Concepts. 5th ed. New York: J. Wiley & Sons, 1988.

MLA (9th ed.) Citation

De Blij, Harm J., and Peter O. Muller. Geography, Regions and Concepts. 5th ed. J. Wiley & Sons, 1988.