Parker, S. P. (1980). McGraw-Hill encyclopedia of environmental science (2d ed.). McGraw-Hill Book Co..
Cita Chicago Style (17a ed.)Parker, Sybil P. McGraw-Hill Encyclopedia of Environmental Science. 2d ed. New York: McGraw-Hill Book Co., 1980.
Cita MLA (9a ed.)Parker, Sybil P. McGraw-Hill Encyclopedia of Environmental Science. 2d ed. McGraw-Hill Book Co., 1980.
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