Krauss, Melvyn B. <br/><br/>
A geometric approach to international trade / 
Melvyn B. Krauss 
 - Oxford :  Basil Blackwell,  1979 
 - 96 p. :  ill. ;  30 cm. 
<br/><br/> Bibliography : p. 94-96 
<br/><br/><label>ISBN: </label>0631184708 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commerce--Mathematical models<br/>Econometrics