Freeman, W. H., & Bracegirdle, B. (1978). An atlas of Embryology (Tercera edición.). Heinemann.
Chicago Style (17th ed.) CitationFreeman, W. H., and Brian Bracegirdle. An Atlas of Embryology. Tercera edición. London, England, United Kingdom: Heinemann, 1978.
MLA (9th ed.) CitationFreeman, W. H., and Brian Bracegirdle. An Atlas of Embryology. Tercera edición. Heinemann, 1978.
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