ASTHANA DK.; MEERA ASTHANA. <br/><br/>
A TEXTBOOK OF ENVIRONMENTAL STUDIES 

 - 1 
 -  S CHAND AND COMPANY LTD.  2009 
 - 460 p. 
<br/><br/><label>ISBN: </label>9788121927641 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ENVIRONMENTAL ENGINEERING
<br/><br/><label>Dewey Class. No.: </label>628 AST  / AST