Moore, Keith L. Before we are born : essentials of embryology and birth defects / Keith L. Moore, T.V.N. Persaud. - 4th ed. - Philadelphia : Saunders, c1993. - xi, 354 p. : ill. (some col.) ; 26 cm. Includes bibliographical references and index. ISBN: 0721646654 (pbk.) LCCN: 92048476 Subjects--Topical Terms: Embryology, Human.Abnormalities.Embryology. LC Class. No.: QM601 / .M757 1993 Dewey Class. No.: 612.6/4 National Library of Medicine Call No.: QS 604 M822b 1994