WINCHESTER,A.M. (1965). Modern Biological Principles A.m Winchester. D.Van Nostrand Company.
Lua i Stíl Chicago (17ú heag.)WINCHESTER,A.M. Modern Biological Principles A.m Winchester. D.Van Nostrand Company, 1965.
Lua MLA (8ú heag.)WINCHESTER,A.M. Modern Biological Principles A.m Winchester. D.Van Nostrand Company, 1965.
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