Krebs, Charles J. <br/><br/>
The messsage of ecology / 
Charles J. Krebs. 
 - New York :  Harpper & Row,  1988. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0060437731 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.
<br/><br/><label>LC Class. No.: </label>QH541  / K67 1988