Park, K. <br/><br/>
Park's Textbook of Preventive and Social Medicine 

 - 14 
 - Jabalpur  Banarsidas Bhanot  1994 
 - 538 
<br/><br/><label>ISBN: </label>8190011863 
<br/><br/><label>Publisher. No.: </label> Gangaram Book Bureau 
<br/><br/><label>Subjects--Personal Names: </label> Environmental Science 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Science