K. Park . <br/><br/>
Park`s Text book of Preventive and Social Medicine   Textual Documents 

 - 23rd ed. . 
 - [s.l]:  Bhanot,  2015. 
 - 936. 
<br/><br/><label>ISBN: </label>9789382219057   
<br/><br/><label>Dewey Class. No.: </label>614  / PAR