Cita APA (7th ed.)

Botkin, D. B., & Keller, E. A. (2011). Environmental science: Earth as a living planet (8th ed.). John Wiley & Sons, Inc..

Cita Chicago (17th ed.)

Botkin, Daniel B., i Edward A. Keller. Environmental Science: Earth as a Living Planet. 8th ed. Hoboken, NJ: John Wiley & Sons, Inc., 2011.

Cita MLA (9th ed.)

Botkin, Daniel B., i Edward A. Keller. Environmental Science: Earth as a Living Planet. 8th ed. John Wiley & Sons, Inc., 2011.