Hawley, Amos H.  <br/><br/>
Human ecology :   a theory of community structure / 
Amos H. Hawley. 
 - New York :   The Ronald Press,  c 1950. 
 - xvi, 456 p. ;  24 cm. 
<br/><br/> Includes index.<br/> 
<br/><br/>326  326 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social interaction within groups.
<br/><br/><label>Dewey Class. No.: </label>301.3 / H316h