APA (7th ed.) Citation

McKnight, T. L., & Hess, D. (2009). Physical geography (9th ed., California ed.). Pearson Education.

Chicago Style (17th ed.) Citation

McKnight, Tom L., and Darrel Hess. Physical Geography. 9th ed., California ed. New York: Pearson Education, 2009.

MLA (9th ed.) Citation

McKnight, Tom L., and Darrel Hess. Physical Geography. 9th ed., California ed. Pearson Education, 2009.