Williams obstetrics / 
F. Gary Cunningham ... [et al.] 
 - 18th ed. 
 - Norwalk :  Appleton & Lange,  1989 
 - 984 p. :  ill. ;  28 cm. 
<br/><br/><label>ISBN: </label>083859736X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Obstetrics
<br/><br/><label>National Library of Medicine Call No.: </label>WQ100