Botkin, D. B. (2003). Environmental science: Earth as a living planet. New York: Wiley.
Trích dẫn kiểu ChicagoBotkin, Daniel B. Environmental Science: Earth As a Living Planet. New York: Wiley, 2003.
Deismireacht MLABotkin, Daniel B. Environmental Science: Earth As a Living Planet. New York: Wiley, 2003.
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