D.S. Malik <br/><br/>
Water Pollution and Management 

 - Delhi  Biotech Books  2011 
 - 561p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>81-7622-227-3 
<br/><br/><label>Dewey Class. No.: </label>628.168  / MAL