APA (7th ed.) Citation

Botkin, D. B., & Keller, E. A. (1995). Environmental science: Earth as a living planet. John Wiley & Sons.

Chicago Style (17th ed.) Citation

Botkin, Daniel B., and Edward A. Keller. Environmental Science: Earth as a Living Planet. New York: John Wiley & Sons, 1995.

MLA (8th ed.) Citation

Botkin, Daniel B., and Edward A. Keller. Environmental Science: Earth as a Living Planet. John Wiley & Sons, 1995.