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

 - 2 
 - New Delhi  S.Chand  2015 
 - viii, 591p. 
<br/><br/><label>ISBN: </label>9788121908597 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology - Environmental science
<br/><br/><label>Dewey Class. No.: </label>574.5 VER