Thoman, Richard S. <br/><br/>
Geography of economic activity 
Richard S. Thoman and Peter D. Corbin 
 - 3rd ed. 
 - New York  McGraw-Hill  c1974 
 - viii,420p.: ill.; 24cm.- 
 - McGraw-Hill series in geography .
<br/><br/><label>Dewey Class. No.: </label>330.9  / THO