United Nations Department of Social Affairs 1954 Document ST/SOA/Ser.P/1 , United Nations publication sales no. 1954. IV. 10

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United Nations Dept. of Social Affairs, Division of Social Welfare 1954 Document ST/SOA/SD/3 , United Nations publication Sales no. 1954.IV.14

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United Nations Dept. of Social Affairs, Division of Human Rights 1953 United Nations publication sales no. 1953.IV. 4

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prepared by the Secretariat of the UN Economic Commission for Europe and published jointly with the Housing and Town and Country Planning Section of the Dept. of Social Affairs

United Nations 1951 United Nations publication 1951.IV.5

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Nations Unies, Departement des questions sociales 1949 Technical assistance for social progress no. 2 , United Nations publication no. de vente 1949.IV.5

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United Nations, Dept. of Social Affairs 1949

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