Obstetrics :  by ten teachers under the direction of Stanley G. Clayton / 
Edited by Stanley G. Clayton, Donald Fraser and T.L.T. Lewis. 
 - 12th ed. 
 - London :  Arnold ,  1972. 
 - 720 p. :  ill. ;  21 cm. 
<br/><br/><label>ISBN: </label>071314193X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Obstetrics.