00524nam a2200109Ia 4500080001900000245008300019260002500102300001300127500000800140520024700148583001900395  a09.05.01 U5819  aClassification by broad economic categories : defined in terms of SITC, rev. 3  bUNaNew YorkUSc1986  ax, 68 p.  aIDS  aOutlines the broad economic categories (BEC) used for summarization of data on international trade.  The main and sub categories describe primary and processed commodities.  For each of the BEC's describes the corresponding SITC rev. 3 codes.  c3/7/00kM2LMGR