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