Conkling, Edgar C. and Yeates, Maurice <br/><br/>
Man's economic environment   

 - New York  McGraw-Hill  1976 
 - xi, 308p. Index, Bibl. 
 - McGraw-Hill series in Geography .
<br/><br/>  
<br/><br/><label>Dewey Class. No.: </label>309.133  / C752.ME