00499nam a2200169Ia 4500082001700000100001800017245009000035260003500125300001400160500000500174690000600179700000500185952009800190964001700288921000900305999001500314  a382bO152.IT  aOlsen, Erling  aInternational trade theory and regional income differences; United States 1880-1950b  aAmsterdambNorth-Hollandc1971  axv, 221p.  a  a   a  00104070aISIbISId1998-09-02l0o382 O152.ITpDP5512r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a8033  c8033d8033