Park, K. <br/><br/>
Park's textbook of preventive and social medicine 

 - 233d 
 - Jabalpur  Banarsidas Bhanot  2015 
 - 936p. 
<br/><br/><label>ISBN: </label>9789382219057 
<br/><br/><label>Dewey Class. No.: </label>614.44  / P15P