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Biology of the Primary Screw Worm Fly, Cochliomyia Americana, and a Comparison of Its Stages with Those of C. Macellaria

Ernest William LaakeEmory Clayton CushingHenry Edward Parish

出版	U.S. Department of Agriculture, 1936
URL	http://books.google.com.hk/books?id=ihPsAQAACAAJ&hl=&source=gbs_api