APA (7th ed.) Citation

BOTKIN, D. B., & KELLER, E. A. (2003). Environmental science: Earth as a living planet (4th ed.). Wiley.

Chicago Style (17th ed.) Citation

BOTKIN, DANIEL B., and EDWARD A. KELLER. Environmental Science: Earth as a Living Planet. 4th ed. New York: Wiley, 2003.

MLA (8th ed.) Citation

BOTKIN, DANIEL B., and EDWARD A. KELLER. Environmental Science: Earth as a Living Planet. 4th ed. Wiley, 2003.