Asthana,D.K, <br/><br/>
Environment Problems & Solutions   

 - 1st /   2006. 
 - Delhi:  S.Chand & Co Ltd.  2006. 
 - 434p:  23cm. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Environment Science., Environment. 
<br/><br/><label>Dewey Class. No.: </label>574.52