Hawley, Amos H <br/><br/>
Human ecology :   a theory of community structure / 
by Amos H Hawley 
 - New York :  Ronald press co,  1950. 
 - 456p. : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology
<br/><br/><label>Dewey Class. No.: </label>574.509  / HAW.H