00607nam a2200145Ia 4500 20260716043007.0 09.05.01 U5819 Classification by broad economic categories : defined in terms of SITC, rev. 3 UN New YorkUS 1986 x, 68 p. IDS Outlines 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. 3/7/00 M2LMGR M U5819 38385 38385