Williams obstetrics. - 23rd ed. / [edited by] F. Gary Cunningham ... [et al.]. - New York : McGraw-Hill Medical, c2010. - xv, 1385 p. : ill. (some col.) ; 29 cm. ISBN: 9780071497015 (hardcover : alk. paper) 0071497013 (hardcover : alk. paper) LCCN: 2009029027 Subjects--Topical Terms: Obstetrics.Obstetrics. LC Class. No.: RG524 / .W7 2010 Dewey Class. No.: 618.2