Trivedi, P R <br/><br/>
Encyclopaedia of environment, pollution, planning and conservation. :  Environmental education  / 
P R Trivedi. 
 - New Delhi :  A.P.H.,   1998 
 - v, 201 p.(v 5) :   ill. ;   23 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>8176840002 (set);8176480053 (v 5) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental management
<br/><br/><label>Universal Decimal Class. No.: </label>363.703