Não informado. (1947). Economic Survey of Europe. United Nations, Department of Economic and Social Affairs.
Chicago-viite (17. p.)Não informado. Economic Survey of Europe. Geneve, Suíça: United Nations, Department of Economic and Social Affairs, 1947.
MLA-viite (8. p.)Não informado. Economic Survey of Europe. United Nations, Department of Economic and Social Affairs, 1947.
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