United Nations. Department of International Economic and Social Affairs. (1989). Projection methods for integrating population variables into development planning. United Nations.
Chicago Style (17th ed.) CitationUnited Nations. Department of International Economic and Social Affairs. Projection Methods for Integrating Population Variables into Development Planning. New York: United Nations, 1989.
MLA引文United Nations. Department of International Economic and Social Affairs. Projection Methods for Integrating Population Variables into Development Planning. United Nations, 1989.
警告：這些引文格式不一定是100％准確.