Cunningham, W. P. (2003). Environmental science: A global concern. McGraw-Hill.
Chicago Style (17. basım) AtıfCunningham, William P. Environmental Science: A Global Concern. New York: McGraw-Hill, 2003.
MLA (9th ed.) AtıfCunningham, William P. Environmental Science: A Global Concern. McGraw-Hill, 2003.
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