Study guide for Williams obstetrics / Larry C. Gilstrap III [ et. al ]. - 20th ed - London : Prentice - Hall International Inc, 1997. - 260p Includes index. ISBN: 9717471266 Subjects--Topical Terms: Obstetrics. LC Class. No.: RG 524 / S78 RG 524 / S78 RG 524 / S78