United Nations. Department of International Economic and Social Affairs. (1989). Case studies in population policy: China. United Nations.
芝加哥风格引文United Nations. Department of International Economic and Social Affairs. Case Studies in Population Policy: China. New York: United Nations, 1989.
MLA引文United Nations. Department of International Economic and Social Affairs. Case Studies in Population Policy: China. United Nations, 1989.
警告：这些引文格式不一定是100％准确.