Environmental education 
edited by V.K.Prabhakar 
 - New Delhi  Anmol Publications  2001 
 - viii,288p.;  22cm. 
 - Encyclopaedia of environmental pollution and awareness in 21st century series .
<br/><br/><label>ISBN: </label>8126108479 
<br/><br/><label>Dewey Class. No.: </label>333.707  / ENV