Olsen, Erling <br/><br/>
International trade theory and regional income differences:  United States 1880-1950 / 
by Erling Olsen. 
 - Amsterdan:  North Holand,  1971. 
 - 218p. 
 - Contributions to economic analysis;  70 .
<br/><br/><label>ISBN: </label>0720431700 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Income, Mathematical models<br/>Income, United States, mathematical models<br/>International trade mathematical models
<br/><br/><label>Dewey Class. No.: </label>382.1  / OLS