Cita APA (7a ed.)
Botkin, D. B., & Keller, E. A. (2012). Environmental science: International student version (8th ed.). John Wiley & Sons.
Cita Chicago Style (17a ed.)
Botkin, Daniel B., y Edward A. Keller. Environmental Science: International Student Version. 8th ed. New Delhi: John Wiley & Sons, 2012.
Cita MLA (9a ed.)
Botkin, Daniel B., y Edward A. Keller. Environmental Science: International Student Version. 8th ed. John Wiley & Sons, 2012.
Precaución: Estas citas no son 100% exactas.