Mayr, E., & Usinger, R. L. (1953). Methods and principles of systematic zoology. McGraw-Hill Book Co., Inc.
Chicago Style (17th ed.) CitationMayr, Ernst, and Robert L. Usinger. Methods and Principles of Systematic Zoology. New York: McGraw-Hill Book Co., Inc, 1953.
MLA (9th ed.) CitationMayr, Ernst, and Robert L. Usinger. Methods and Principles of Systematic Zoology. McGraw-Hill Book Co., Inc, 1953.
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