International economics 
Salvatore, Dominick. 
 - Fifth edition. 
 -  Prentice-Hall, Inc.  1995 
 - xxxvii, 778 pages. 
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<br/><br/><label>ISBN: </label>0-13-180381-6 
<br/><br/><label>Dewey Class. No.: </label>GS 330 Sa3i 1995