University of Calcutta <br/><br/>
Environment 
University of Calcutta 
 - Calcutta  University of Calcutta  2000 
 - 225p.; 22cm 
<br/><br/> It includes glossary 
<br/><br/><label>ISBN: </label> Rs.100 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social services and other problems
<br/><br/><label>Dewey Class. No.: </label>363.7  /  UNI