Ambasht, R. S. <br/><br/>
Environment and Pollution/  an ecological approach  
R. S. Ambasht & P. K. Ambasht  
 - 4th ed. 
 - New Delhi  CBS Publishers & Distributors  2006 
 - xii.323p.  ill.  21.5cm 
<br/><br/><label>ISBN: </label>812391223407 
<br/><br/><label>LC Class. No.: </label>TD174 AMB