(1976). The use of socio - economic indicators in developing planning. United nations educational, scientific and cultural organisation.
Chicago-tyylinen lähdeviittausThe Use of Socio - Economic Indicators in Developing Planning. Paris: United nations educational, scientific and cultural organisation, 1976.
MLA-viiteThe Use of Socio - Economic Indicators in Developing Planning. United nations educational, scientific and cultural organisation, 1976.
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