Verma P S <br/><br/>
Environmental biology : principles of ecology 

 - New Delhi  S. Chand & Co. Ltd  2006 
 - viii,591p 
<br/><br/><label>ISBN: </label>81 219 0859 0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecosystem Diversity Biogeography Wild Life
<br/><br/><label>Dewey Class. No.: </label>574.5 VERE