Vernon, R.  <br/><br/>
The technology factor in international trade : a conference of the Universities National Bureau Committee for economic research  (Book) 

 - New York  National Bureau of Economic Research  1970 
 - 493 p. 
<br/><br/><label>ISBN: </label>0870142089 
<br/><br/><label>Universal Decimal Class. No.: </label>339.5:6 VER  / 9062