Townsend, Colin R. <br/><br/>
Essentials of ecology /  
Colin R. Townsend, Michael Begon and John L. Harper. 
 - 2nd ed /   . 
 - Oxford :   Blackwell Publishers ,   2003. 
 - xiii,530p. :   ill.,figs. ;   22cm .  
<br/><br/>Includes index and bibliography 
<br/><br/><label>ISBN: </label>1405103280  GBP 29.50 
<br/><br/><label>Subjects--Index Terms: </label>ECOLOGY 
<br/><br/><label>Dewey Class. No.: </label>577  / TOW/E