A laboratory manual and text-book of embryology Prentiss, Charles William, 1874-1915 creator text book Philadelphia W.B. Saunders Company 1915 1915
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ENG "Titles for reference": p. 15. Embryology QM601 .P7 https://www.biodiversitylibrary.org/bibliography/44087 1558199 15001517 10.5962/bhl.title.44087