United Nations. Dept. of Economic and Social Affairs. (1976). Fertility and family planning in Europe around 1970: A comparative study of twelve national surveys. United Nations.
Παραπομπή σε μορφή Chicago (17η εκδ.)United Nations. Dept. of Economic and Social Affairs. Fertility and Family Planning in Europe Around 1970: A Comparative Study of Twelve National Surveys. New York: United Nations, 1976.
Παραπομπή σε μορφή MLA (8th εκδ.)United Nations. Dept. of Economic and Social Affairs. Fertility and Family Planning in Europe Around 1970: A Comparative Study of Twelve National Surveys. United Nations, 1976.
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