00393nam a2200133Ia 4500082002300000100006500023245005000088250000900138260003500147300002500182490004200207500000500249700000500254  a382.40182bUn58.SI  aUnited Nations. Economic and Social Affairs, Department of-.  aStandard international trade classificationb  aRev.  aNew YorkbUnited Nationsc1961  aviii, 135p. Appendix  aStatistical papersv series M- no. 34  a  a