Gupta, Piyush <br/><br/>
Textbook of Preventive and Social Medicine 

 - 2nd 
 - New Delhi  CBS Publishers and Distributors  2007 
 - 854 P. 
<br/><br/><label>ISBN: </label>9788123914572 
<br/><br/><label>Dewey Class. No.: </label>614.44