Não informado. (1952). International Trade. General Agreement on Tariffs and Trade.
Chicago (17e ed.) BronvermeldingNão informado. International Trade. Geneva, Suíça: General Agreement on Tariffs and Trade, 1952.
MLA (8e ed.) BronvermeldingNão informado. International Trade. General Agreement on Tariffs and Trade, 1952.
Let op: Deze citaties zijn niet altijd 100% accuraat.