Santra, S C. <br/><br/>
Environmental science   

 - Kolkata :   New Central Book Agency,   2008. 
<br/><br/><label>ISBN: </label>817381404X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Life Sciences
<br/><br/><label>Dewey Class. No.: </label>628  / SAN