Essentials of Obstetrics and Gynecology Author:Neville Hacker, J. George Moore B. Saunders. Univ. of New South Wales, Australia. Concise, thorough text for students. Includes new chapters on human genome and endothelium-derived vasodepressors. Previous edition: c1992. Halftone illustrations. 57 contributors, 50 U.S. DNLM: Obstetrics.