Παραπομπή σε μορφή APA (7η εκδ.)

United Nations Department of International Economic and Social Affairs. (1973). World population prospects as assessed in 1968. United Nations.

Παραπομπή σε μορφή Chicago (17η εκδ.)

United Nations Department of International Economic and Social Affairs. World Population Prospects as Assessed in 1968. New York: United Nations, 1973.

Παραπομπή σε μορφή MLA (8th εκδ.)

United Nations Department of International Economic and Social Affairs. World Population Prospects as Assessed in 1968. United Nations, 1973.