Freeman, Donald B. <br/><br/>
International trade, migration, and capital flows :  a quantitative analysis of spatial economic interaction / 
Donald B. Freeman. 
 - Chicago :  University of Chicago, Dept. of Geography,  c1973. 
 - xiv, 201 p. :  illus. ;  23 cm. 
 - The University of Chicago. Dept. of Geography. Research paper  no. 146 .
 -  no. 146. Research paper (University of Chicago. Department of Geography) ; .
<br/><br/>Bibliography: p. 189-201. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International economic relations--Mathematical models.<br/>International trade--Mathematical models.
<br/><br/><label>Dewey Class. No.: </label>382.1  / FRI 1973