United Nations. Department of International Economic and Social Affairs. (1988). First marriage: Patterns and determinants. United Nations.
Παραπομπή σε μορφή Chicago (17η εκδ.)United Nations. Department of International Economic and Social Affairs. First Marriage: Patterns and Determinants. New York: United Nations, 1988.
Παραπομπή σε μορφή MLA (9th εκδ.)United Nations. Department of International Economic and Social Affairs. First Marriage: Patterns and Determinants. United Nations, 1988.
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