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APA-viiteUnited Nations. Department of Economic and Social Development. (1993). Projection methods for integrating population variables into development planning: Volume 1, Methods for comprehensive planning. United Nations.
Chicago-tyylinen lähdeviittausUnited Nations. Department of Economic and Social Development. Projection Methods for Integrating Population Variables into Development Planning: Volume 1, Methods for Comprehensive Planning. New York, [N.Y.]: United Nations, 1993.
MLA-viiteUnited Nations. Department of Economic and Social Development. Projection Methods for Integrating Population Variables into Development Planning: Volume 1, Methods for Comprehensive Planning. United Nations, 1993.
Harvard-tyylinen lähdeviittausUnited Nations. Department of Economic and Social Development. 1993. Projection methods for integrating population variables into development planning: Volume 1, Methods for comprehensive planning. New York, [N.Y.]: United Nations.