Bhargava,D S  <br/><br/>
Foundation of Environmental Studies  / 
D S Bhargava 
 - ND:  Galgotia Pub,  2005. 
 - 356p.:  [pb] 
<br/><br/><label>ISBN: </label>8175154837 
<br/><br/><label>Dewey Class. No.: </label>628.5  / SHU-F