Gupta, Piyush <br/><br/>
Textbook  of Preventice And Social Medicine 

 - 3 
 - India  :CBS Publishers & Distributers  2010 
 - 844p. 
<br/><br/><label>ISBN: </label>9788123919218 
<br/><br/><label>Dewey Class. No.: </label>614  / GUP