The species problem; a symposium presented at the Atlanta meeting of the American Association for the Advancement of Science, December 28-29, 1955 American Association for the Advancement of Science. creator Mayr, Ernst, 1904-2005 contributor text book Washington 1957 1957
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ENG Congresses Species QH83 .A73 1955 575 Publication (American Association for the Advancement of Science), no. 50 https://www.biodiversitylibrary.org/bibliography/4473 740152 57011321 10.5962/bhl.title.4473 DLC/ICU