Gabbe, S.G. <br/><br/>
Obstetrics: normal and problem pregnancies. 6th. ed. 

 - 6 
 - Philadelphia :  Elsevier Saunders  2012 
<br/><br/><label>ISBN: </label>9781437719352 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Obstetrics, General Works