D. N. Guha Bakshi <br/><br/>
A textbook of Environmental Science 

 - Kolkata  Calcutta book house  2000 
 - 396 p. 
<br/><br/><label>ISBN: </label> 140 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Science
<br/><br/><label>Dewey Class. No.: </label>301.3  / GUH