Cita APA (7a ed.)
Botkin, D. B., & Keller, E. A. (2000). Environmental Science: Earth As a Living Planet (3rd Edition.). John Wiley & Sons.
Cita Chicago Style (17a ed.)
Botkin, Daniel B., y Edward A. Keller. Environmental Science: Earth As a Living Planet. 3rd Edition. New York: John Wiley & Sons, 2000.
Cita MLA (9a ed.)
Botkin, Daniel B., y Edward A. Keller. Environmental Science: Earth As a Living Planet. 3rd Edition. John Wiley & Sons, 2000.
Precaución: Estas citas no son 100% exactas.