Putman, R J; Wratten, S D <br/><br/>
Principles of ecology 

 -  University of California Press, Berkeley  1984 
 - 388 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology; Biology
<br/><br/><label>Dewey Class. No.: </label>574.5  PUT-P