Focus on geographic activity :  a collection of original studies / 
[by] Richard S. Thoman [and] Donald J. Patton. 
 - New York :  McGraw-Hill,  [1964] 
<br/><br/><label>LCCN: </label>63022528 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic geography.