Clarke, George L. <br/><br/>
Elements of ecology / 
George L. Clarke. 
 - New York :  Wiley   1954. 
 - xiv, 560 p. :  ill., maps. ;   24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.
<br/><br/><label>Dewey Class. No.: </label>574.5