Não informado. (1947). Economic Survey of Europe. United Nations, Department of Economic and Social Affairs.
Lua i Stíl Chicago (17ú heag.)Não informado. Economic Survey of Europe. Geneve, Suíça: United Nations, Department of Economic and Social Affairs, 1947.
Lua MLA (8ú heag.)Não informado. Economic Survey of Europe. United Nations, Department of Economic and Social Affairs, 1947.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.