United Nations Department of Economic and Social Information and Policy Analysis. (1992). Population bulletin of the United Nations No 33-1992. United Nations.
Παραπομπή σε μορφή Chicago (17η εκδ.)United Nations Department of Economic and Social Information and Policy Analysis. Population Bulletin of the United Nations No 33-1992. New York: United Nations, 1992.
Παραπομπή σε μορφή MLA (8th εκδ.)United Nations Department of Economic and Social Information and Policy Analysis. Population Bulletin of the United Nations No 33-1992. United Nations, 1992.
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