Cita APA

Botkin, D. B., & Keller, E. A. (2003). Environmental Science: Earth as a Living Planet (4th ed.). John Wiley & Sons.

Citación estilo Chicago

Botkin, Daniel B., and Edward A. Keller. Environmental Science: Earth as a Living Planet. 4th ed. New York: John Wiley & Sons, 2003.

Cita MLA

Botkin, Daniel B., and Edward A. Keller. Environmental Science: Earth as a Living Planet. 4th ed. John Wiley & Sons, 2003.