Paul R. Krugman & Maurice Obstfeld - <br/><br/>
International Economics 

 - 4th ed 
 -   Addison-Wesley  ©1997 
<br/><br/><label>ISBN: </label>0-673-52497-3  270 
<br/><br/><label>Dewey Class. No.: </label>337 KRU. 4