Hewitt, Kenneth. <br/><br/>
Man and environment :  conceptual frameworks / 
[by] Kenneth Hewitt [and] F. Kenneth Hare. 
 - Washington, D.C. :  Association of American Geographers,  1973. 
 - 39 p. : ill. 
 - Resource paper ; no. 20 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human ecology.<br/>Human geography.