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

 - 2nd 
 - Englewood Cliffs, N J  Prentice Hall  1973 
 - xvi,236p p. 
<br/><br/><label>ISBN: </label>0 13 473918 3 
<br/><br/><label>Subjects--Index Terms: </label>International trade