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Lua i Stíl Chicago (17ú heag.)United Nations. Department of International Economic and Social Affairs. Fertility Behaviour in the Context of Development: Evidence from the World Fertility Survey. New York: United Nations, 1987.
Lua MLA (9ú heag.)United Nations. Department of International Economic and Social Affairs. Fertility Behaviour in the Context of Development: Evidence from the World Fertility Survey. United Nations, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.