Williams obstetrics 
F. Gary Cunningham �[& five  others]. 
 - 21st ed. 
 -  McGraw-Hill,  2001 
 - x, 1668 pages 
<br/><br/>
<br/><br/><label>ISBN: </label>0-8385-9647-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Obstetrics.
<br/><br/><label>Dewey Class. No.: </label>618.2 W7211 2001