Não informado. (1959). GATT Activities. General Agreement on Tariffs and Trade.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. GATT Activities. Geneva, Suíça: General Agreement on Tariffs and Trade, 1959.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. GATT Activities. General Agreement on Tariffs and Trade, 1959.
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