APA (7th ed.) Citation

Botkin, D. B., & Keller, E. A. (2011). Environmental science (8th ed.). John Wiley & Sons.

Chicago Style (17th ed.) Citation

Botkin, Daniel B., and Edward A. Keller. Environmental Science. 8th ed. New York: John Wiley & Sons, 2011.

MLA (9th ed.) Citation

Botkin, Daniel B., and Edward A. Keller. Environmental Science. 8th ed. John Wiley & Sons, 2011.