Effective care in pregnancy and childbirth / edited by Iain Chalm ers, Murry Enkin and Marc J. N. C. Keirse. - Oxford : University Press, 1989. - 791 p.: ill. 28 cm. Includes bibliographical references. ISBN: 0192615580 (v.1) Subjects--Topical Terms: Labor. Prenatal care. National Library of Medicine Call No.: WQ 175 / Ef36c 1989