Collin , P.H. <br/><br/>
Dictionary of ecology and environment. 

 - New Delhi :  Universal Book Stall ,  1996. 
 - 253 p.  22 cm. 
<br/><br/><label>ISBN: </label>8185392943 
<br/><br/><label>Dewey Class. No.: </label>363.703 COL