Staples, Z. Carleton. <br/><br/>
Economic geography / 
Carleton Z. Staples and G. Morell York. 
 - 3rd ed. 
 - New York :  South-western publishing,  c 1940. 
 - 702 p. :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>340  340 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Historical geography--Economic.
<br/><br/><label>Dewey Class. No.: </label>911.3 / S27e