PUROHIT S S <br/><br/>
A TEXT BOOK OF ENVIRONMENTAL SCIENCES A TEXT BOOK OF ENVIRONMENTAL SCIENCES 

 - 
 - HYDERABAD  BSC  2005 
 - 398 
<br/><br/><label>ISBN: </label>81-88826-14-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ENVIRONMENTAL SCIENCE ES 
<br/><br/><label>Dewey Class. No.: </label>333.7 PUR  / PUR