United Nations. Department of Economic and Social Affairs. Population Division. (2013). World population prospects 2013. United Nations.
Παραπομπή σε μορφή Chicago (17η εκδ.)United Nations. Department of Economic and Social Affairs. Population Division. World Population Prospects 2013. New York: United Nations, 2013.
Παραπομπή σε μορφή MLA (9th εκδ.)United Nations. Department of Economic and Social Affairs. Population Division. World Population Prospects 2013. United Nations, 2013.
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