Commodity indexes for the Standard international trade classificatio n. Revision 2 - United Nations. Statistical Office; United Nations. Statistical Office (New York : United Nations, 1981)
"ST/ESA/STAT/SER.M/38/Rev."--Verso of t.p.
Vol. 1: "United Nations publication sales no E.81.XVII.3"--Verso of t.p.; vol. 2: "United Nations publication sales no. E.81.XVII.4"--Verso of t.p.
Keywords: Commercial products -- Classification