Santra, <br/><br/>
Environmental Science  Textual Documents 
S.C.Santra 
 - Ist ed-2001. 
 - London  New Central Book Agency (P) Ltd 
 - 1529p:  25cm. 
<br/><br/><label>ISBN: </label>978 81 7381 404 4 
<br/><br/><label>Subjects--Index Terms: </label>Environmental Science G-Biology 
<br/><br/><label>Dewey Class. No.: </label>577.5