International Trade Centre UNCTAD/GATT. (1975). Trade information classification. The Centre.
Čikaški stil citiranja (17. izdanje)International Trade Centre UNCTAD/GATT. Trade Information Classification. Geneva: The Centre, 1975.
MLA način citiranja (9. izdanje)International Trade Centre UNCTAD/GATT. Trade Information Classification. The Centre, 1975.
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