Williams obstetrics / 
F. Gary Cunningham ... [et al.] 
 - 19th ed. 
 - Englewood :  Prentice-Hall International,  1993 
 - 1428 p. :  ill. ;  29 cm. 
<br/><br/><label>ISBN: </label>0838596355 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Obstetrics
<br/><br/><label>National Library of Medicine Call No.: </label>WQ100