ASTHANA D.K <br/><br/>
A TEXTBOOK OF ENVIRONMENTAL STUDIES A TEXTBOOK OF ENVIRONMENTAL STUDIES 

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 - NEW DELHI  S.CHAND  2006 
 - 460 
<br/><br/><label>ISBN: </label>81-219-2764-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ENVIRONMENTAL SCIENCE ENVIRONMENTAL 
<br/><br/><label>Dewey Class. No.: </label>375.008 3 AST  / AST