00446nam a2200133Ia 4500008004100000010001300041040001700054082002100071100002100092245007200113260004200185300001400227650007100241190328s9999||||xx |||||||||||||| ||und||  a68-17211  aNITILcNITIL  221sta382bH477I  aHeller, H Robert 0aInternational tradebtheory and empirical evidencecH Robert Heller  aEnglewood CliffsbPrentice-Hallc1968  axi, 189p.  aInternational trade; Equilibrium (Economics); Economic development