Cooper, A. R. (1996). Cooper's comprehensive environmental desk reference. Van Nostrand Reinhold.
Lua i Stíl Chicago (17ú heag.)Cooper, André R. Cooper's Comprehensive Environmental Desk Reference. New York: Van Nostrand Reinhold, 1996.
Lua MLA (8ú heag.)Cooper, André R. Cooper's Comprehensive Environmental Desk Reference. Van Nostrand Reinhold, 1996.
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