Tietueen sitaatit
APA-viiteUnited Nations. Economic Commission for Europe. (2003). Ageing populations: Opportunities and challenges for Europe and North America. United Nations.
Chicago-tyylinen lähdeviittausUnited Nations. Economic Commission for Europe. Ageing Populations: Opportunities and Challenges for Europe and North America. New York, [N.Y.] ; Geneva: United Nations, 2003.
MLA-viiteUnited Nations. Economic Commission for Europe. Ageing Populations: Opportunities and Challenges for Europe and North America. United Nations, 2003.
Harvard-tyylinen lähdeviittausUnited Nations. Economic Commission for Europe. 2003. Ageing populations: Opportunities and challenges for Europe and North America. New York, [N.Y.] ; Geneva: United Nations.
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