00325nam a2200133Ia 4500082002300000100001800023245007100041260001500112300000900127490001500136490002100151500000500172760001400177  a382.9142 B171.TCb  aBalassa, Bela  aTrade creation and trade diversion in the European common marketb  aYalec1967  a21p.  vMarch 1967  aEconomic Journal  a  aNew Haven