Instant notes ecology 
Aulay Machenzie, Andy S. Ball, Sonia R. Virdee 
 - Kolkata  Viva Books   2002 
 - vii,337p. 
<br/><br/><label>ISBN: </label>81-7649-335-X 
<br/><br/><label>Dewey Class. No.: </label>574.5  / M197