United Nations. Department of International Economic and Social Affairs. (1990). Patterns of first marriage: Timing and prevalence. United Nations.
Citace podle Chicago (17th ed.)United Nations. Department of International Economic and Social Affairs. Patterns of First Marriage: Timing and Prevalence. New York: United Nations, 1990.
Citace podle MLA (9th ed.)United Nations. Department of International Economic and Social Affairs. Patterns of First Marriage: Timing and Prevalence. United Nations, 1990.
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