Williams obstetrics / 
 Obstetrics 
F. Gary Cunningham [et al.] 
 - 20th ed. 
 - Stamford,    Appleton & Lange,   conn. :  c1997 
 - viii, 1448 p. :  il. 
<br/><br/><label>ISBN: </label>083859638X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>OBSTETRICIA
<br/><br/><label>National Library of Medicine Call No.: </label>WQ 100  / W724 1997