APA (7th ed.) Citation

De Blij, H. J., & Muller, P. O. (1994). Geography: Realms, regions and concepts. Vol. I. John Wiley & Sons.

Chicago Style (17th ed.) Citation

De Blij, Harm J., and Peter O. Muller. Geography: Realms, Regions and Concepts. Vol. I. New York: John Wiley & Sons, 1994.

MLA (9th ed.) Citation

De Blij, Harm J., and Peter O. Muller. Geography: Realms, Regions and Concepts. Vol. I. John Wiley & Sons, 1994.