APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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