Clarke, George L. <br/><br/>
Elements of ecology / 
George L. Clarke. 
 - 1st ed. 
 - London :  John Wiley & Sons,  1954 
 - xiv, 560 p. :  ill. ;  21 cm. 
<br/><br/>Includes references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.
<br/><br/><label>Dewey Class. No.: </label>574.5  / CLE