K Park <br/><br/>
Park's Textbook of preventive and social medicine 
K Park 
 - ed. 16 
 -  Banarsidas Bhanot  2000 
<br/><br/><label>ISBN: </label> 350 
<br/><br/><label>Dewey Class. No.: </label>614.44PAR.P0  / 1