Singh, P.P <br/><br/>
Teaching of Environment  : New Trends and Innovations 
/Edited by P.P. Singh and S Sharma  
 - New Delhi  Deep and Deep Publications  2008 
 - xiv,253p. 
<br/><br/><label>ISBN: </label>81-7629-616-3 
<br/><br/><label>Dewey Class. No.: </label>363  / SIN/T