Botkin, D. B., & Keller, E. A. (2011). Environmental Science: Earth as a Living Planet (8th ed.). Wiley.
Chicago Style (17th ed.) CitationBotkin, Daniel B., and Edward A. Keller. Environmental Science: Earth as a Living Planet. 8th ed. Hoboken, NJ: Wiley, 2011.
MLA (9th ed.) CitationBotkin, Daniel B., and Edward A. Keller. Environmental Science: Earth as a Living Planet. 8th ed. Wiley, 2011.
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