Heller, H. Robert <br/><br/>
International trade: theory and empirical evidence 

 - 2nd ed 
 - New Jersey  Prentice-Hall of India  1973 
 - xiv,236p.   
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<br/><br/><label>Subjects--Index Terms: </label>International trade 
<br/><br/><label>Dewey Class. No.: </label>382