Παραπομπή σε μορφή APA (7η εκδ.)

United Nations Department of International Economic and Social Affairs. (1991). Concise report on the world population situation in 1991: With a special emphasis on age structure. United Nations.

Παραπομπή σε μορφή Chicago (17η εκδ.)

United Nations Department of International Economic and Social Affairs. Concise Report on the World Population Situation in 1991: With a Special Emphasis on Age Structure. New York: United Nations, 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

United Nations Department of International Economic and Social Affairs. Concise Report on the World Population Situation in 1991: With a Special Emphasis on Age Structure. United Nations, 1991.