Cita APA (7th ed.)

Botkin, D. B., & Keller, E. A. (2009). Environmental Science: Earth As A Living Planet (6th ed.). Wiley India.

Cita Chicago (17th ed.)

Botkin, Daniel B., i Edward A. Keller. Environmental Science: Earth As A Living Planet. 6th ed. New Delhi: Wiley India, 2009.

Cita MLA (9th ed.)

Botkin, Daniel B., i Edward A. Keller. Environmental Science: Earth As A Living Planet. 6th ed. Wiley India, 2009.