United Nations. Department of International Economic and Social Affairs. (1992). Preparing migration data for subnational population projections. United Nations.
Παραπομπή σε μορφή Chicago (17η εκδ.)United Nations. Department of International Economic and Social Affairs. Preparing Migration Data for Subnational Population Projections. New York: United Nations, 1992.
Παραπομπή σε μορφή MLA (9th εκδ.)United Nations. Department of International Economic and Social Affairs. Preparing Migration Data for Subnational Population Projections. United Nations, 1992.
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