Dr. S C. Santra <br/><br/>
Environmental Science 

 - 3rd 
 - Kolkata  New Central Book Agency(P) Ltd  2001 
 - xxx, 1529p. 
<br/><br/><label>ISBN: </label>9788173814044 
<br/><br/><label>Dewey Class. No.: </label>577  / Sa11En