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APA-viiteUnited Nations International Comparison Programme, Commission of the European Communities, & United Nations. Department for Economic and Social Information and Policy Analysis. Statistical Division. (1994). World comparisons of real gross domestic product and purchasing power, 1985: Phase V of the International Comparison Programme. United Nations.
Chicago-tyylinen lähdeviittausUnited Nations International Comparison Programme, Commission of the European Communities, ja United Nations. Department for Economic and Social Information and Policy Analysis. Statistical Division. World Comparisons of Real Gross Domestic Product and Purchasing Power, 1985: Phase V of the International Comparison Programme. New York: United Nations, 1994.
MLA-viiteUnited Nations International Comparison Programme, et al. World Comparisons of Real Gross Domestic Product and Purchasing Power, 1985: Phase V of the International Comparison Programme. United Nations, 1994.
Harvard-tyylinen lähdeviittausUnited Nations International Comparison Programme, Commission of the European Communities & United Nations. Department for Economic and Social Information and Policy Analysis. Statistical Division. 1994. World comparisons of real gross domestic product and purchasing power, 1985: Phase V of the International Comparison Programme. New York: United Nations.