United Nations. Dept. of International Economic and Social Affairs. (1983). Fertility level and trends as assessed from twenty world fertility surveys. United Nations.
Chicago Style (17th ed.) CitationUnited Nations. Dept. of International Economic and Social Affairs. Fertility Level and Trends as Assessed from Twenty World Fertility Surveys. New York: United Nations, 1983.
MLA (9th ed.) CitationUnited Nations. Dept. of International Economic and Social Affairs. Fertility Level and Trends as Assessed from Twenty World Fertility Surveys. United Nations, 1983.
Warning: These citations may not always be 100% accurate.