APA (7th ed.) Citation

De Blij, H. J., & Muller, P. O. (1998). Geography: Realms, regions, and concepts (Updated and rev. 8. ed.). Wiley.

Chicago Style (17th ed.) Citation

De Blij, Harm J., and Peter O. Muller. Geography: Realms, Regions, and Concepts. Updated and rev. 8. ed. New York [u.a.]: Wiley, 1998.

MLA (9th ed.) Citation

De Blij, Harm J., and Peter O. Muller. Geography: Realms, Regions, and Concepts. Updated and rev. 8. ed. Wiley, 1998.