Perspectives in environment /  
Edited by Dr. S.K Agarwal, J.P Kaushik, K.K Koul and A.K Jain 
 - New Delhi ;  A.P.H Publishing ,  1998. 
 - xv,381 pages :  illus ;  25 cm. 
<br/><br/> includes an index. 
<br/><br/><label>ISBN: </label>8170249724 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment
<br/><br/><label>LC Class. No.: </label>S 942 Per