Yadav P R <br/><br/>
Environmental biodiversity 

 - New Delhi  Discovery publishing house  2004 
 - 316p. 
<br/><br/><label>ISBN: </label>8171417558 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biodiversity--Freshwater
<br/><br/><label>Dewey Class. No.: </label>578.7  / YAD