Singh, P.P. <br/><br/>
Environment and Pollution Education 

 - 1st ed. 
 - New Delhi  Deep & Deep  2004 
 - xiv, 434p. 
<br/><br/><label>ISBN: </label>8176295914 
<br/><br/><label>Dewey Class. No.: </label>363.7  / SIN/ENV