Thoman Richard S <br/><br/>
Geography of economic activity 

 - 2 
 - New York  McGraw Hill U S A       1968 
 - xii,561p  cm. 
 - McGraw Hill series in goegraphy .
<br/><br/> Appendix p. 515-38 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economic Geography
<br/><br/><label>Dewey Class. No.: </label>U6.1.N6, K8