Park, J. E.  . <br/><br/>
Text Book of Preventive and Social Medicine /   Textual Documents 

 - 13th /   . 
 - Jabalpur :   M/s Banarsidas Bhanoat  ,   1991. 
 - 2354 ;    
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Index Terms: </label>Community Medicine  Medical Science 
<br/><br/><label>Dewey Class. No.: </label>614  / PAR