Park K <br/><br/>
Parks text book of preventive and social medicine 

 - 21st Ed. 
 - Jabalpur  Banarsidas bhanot  2011 
 - 868 
<br/><br/><label>ISBN: </label>9788190607995 
<br/><br/><label>Dewey Class. No.: </label>614  / PAR/PR