United Nations Department of International Economic and Social Affairs. (1969). 1967 report on the world social situation. United Nations.
Παραπομπή σε μορφή Chicago (17η εκδ.)United Nations Department of International Economic and Social Affairs. 1967 Report on the World Social Situation. New York: United Nations, 1969.
Παραπομπή σε μορφή MLA (8th εκδ.)United Nations Department of International Economic and Social Affairs. 1967 Report on the World Social Situation. United Nations, 1969.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.