Citazione Stile APA (7a Edizione)

Botkin, D. B., & Keller, E. A. (2005). Environmental science: Earth as a living planet (5th ed.). John Wiley and Sons.

Citazione stile Chigago Style (17a edizione)

Botkin, Daniel B., e Edward A. Keller. Environmental Science: Earth as a Living Planet. 5th ed. Hoboken, N. J: John Wiley and Sons, 2005.

Citatione MLA (9a ed.)

Botkin, Daniel B., e Edward A. Keller. Environmental Science: Earth as a Living Planet. 5th ed. John Wiley and Sons, 2005.