Krauss, Melvyn B. <br/><br/>
A geometric approach to international trade / 

 - New York :  Wiley,  1979. 
 - 96 p.  
<br/><br/> "A Halsted Press book." 
<br/><br/><label>ISBN: </label>0470993537 
<br/><br/><label>Dewey Class. No.: </label>382  / KRA