MEHTA, M. <br/><br/>
UNDERSTANDING ENVIRONMENTAL SCIENCE. 
MEENAKSHI MEHTA. 
 - NEW  DELHI.   D. P. H  2010. 
 - ix351p, ill. 
<br/><br/><label>ISBN: </label>9788183565318. 
<br/><br/><label>LC Class. No.: </label>TD789. M4 2010.