APA (7th ed.) Citation

Botkin, D. B., & Keller, E. A. (2002). Environmental science: Earth as a living planet (Fourth Edition.). John Wiley & Sons.

Chicago Style (17th ed.) Citation

Botkin, Daniel B., and Edward A. Keller. Environmental Science: Earth as a Living Planet. Fourth Edition. New York: John Wiley & Sons, 2002.

MLA (9th ed.) Citation

Botkin, Daniel B., and Edward A. Keller. Environmental Science: Earth as a Living Planet. Fourth Edition. John Wiley & Sons, 2002.