APA (7th ed.) Citation

Muller, R. A., & Oberlander, T. M. (1978). Physical geography today: A portrait of a planet (2nd ed.). CRM.

Chicago Style (17th ed.) Citation

Muller, Robert A., and Theodore M. Oberlander. Physical Geography Today: A Portrait of a Planet. 2nd ed. New York: CRM, 1978.

MLA (9th ed.) Citation

Muller, Robert A., and Theodore M. Oberlander. Physical Geography Today: A Portrait of a Planet. 2nd ed. CRM, 1978.