Ohlin Bertil <br/><br/>
Interregional and international trade 
Ohlin Bertil 
 - Cambridge  Havard Universtiy Press       1967 
 - 324p  cm. 
<br/><br/><label>Standard No.: </label>146107 
<br/><br/><label>Source: </label> Textbook 
<br/><br/><label>Dewey Class. No.: </label>"X:54, K7; G3; J7/TD3"