Dutta , D. C.   . <br/><br/>
Text Book of Obstetrics /   Textual Documents 

 - 3rd /   . 
 - Calcutta :   New Central Book Agency ,   1992. 
 - 171 ;    
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Index Terms: </label>Medical Science 
<br/><br/><label>Dewey Class. No.: </label>618.2  / DAT