Sunder Lal, Adarsh, Pankaj <br/><br/>
Textbook of community medicine : (preventive and social medicine) 

 - 4th ed 
 - New Delhi,  CBS,   2014 
<br/><br/><label>ISBN: </label>9788123924472 
<br/><br/><label>LC Class. No.: </label>RA425