Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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