Thomson, Richard S. . <br/><br/>
The Geography of Economic Activity /  Textual Documents 
Richard S. Thomson, Peter B. Corbin. 
 - 3rd ed. / 
 - New York :  McGraw - Hill book company ,  1974. 
 - vii, 420p. :  ill. ;  24cm . 
<br/><br/>Index 
<br/><br/><label>ISBN: </label>0-07-064207-9 
<br/><br/><label>Subjects--Index Terms: </label>Geography-Economic activity Economic geography PG-Geography 
<br/><br/><label>Dewey Class. No.: </label>910.33  / Th 36 Ge