Mackenzie, A. <br/><br/>
Ecology / 
by A. Mackenzie, A. S. Ball and S. R. Virdee. 
 - 2nd ed. 
 - New Delhi :  Viva,  2002. 
 - 339 p. 
<br/><br/><label>ISBN: </label>817649335X :  KES 520 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.