Asthana, D.K <br/><br/>
Textbook Of Environmental Studies  Book 
Asthana, Asthana Meera. 
 - New Delhi :  S.Chand & Company,  0 
 - xvi, 397 p. : 
<br/><br/> All. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>8121927641 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Science
<br/><br/><label>Dewey Class. No.: </label>304.2