United Nations Department of International Economic and Social Affairs. (1988). World population trends and policies: 1987 monitoring report : special topics : fertility and women's life cycle and socio-economic differentials in mortality. United Nations.
Παραπομπή σε μορφή Chicago (17η εκδ.)United Nations Department of International Economic and Social Affairs. World Population Trends and Policies: 1987 Monitoring Report : Special Topics : Fertility and Women's Life Cycle and Socio-economic Differentials in Mortality. New York: United Nations, 1988.
Παραπομπή σε μορφή MLA (8th εκδ.)United Nations Department of International Economic and Social Affairs. World Population Trends and Policies: 1987 Monitoring Report : Special Topics : Fertility and Women's Life Cycle and Socio-economic Differentials in Mortality. United Nations, 1988.
