Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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