Kumaran Vasantha .T  Norbert Antony .S <br/><br/>
Environmental Pollution 

 - Colombo  Kumaran Book House  2007 
 - 69 p. 
<br/><br/><label>ISBN: </label>978-955-659-079-X 
<br/><br/><label>Dewey Class. No.: </label>910  / KUM