Singh M.P., <br/><br/>
Environmental education 
by M.P. Singh 
 - New Delhi  Shree Publishers & Distributors  2009 
 - 428P. 
<br/><br/><label>ISBN: </label>978-81-8329-316-7 
<br/><br/><label>Dewey Class. No.: </label>T:(G:55)  / P9