Subramanian,V <br/><br/>
A Textbook in Environmental Science 
/by V Subramanian 
 - New Delhi  Narosa Publishing House   2002 
 - v,237p. 
<br/><br/><label>ISBN: </label>81-7319-410-6 
<br/><br/><label>Dewey Class. No.: </label>628  / SUB/A