Παραπομπή σε μορφή APA (7η εκδ.)

(1956). The aging of populations and its economic and social implications. United Nations.

Παραπομπή σε μορφή Chicago (17η εκδ.)

The Aging of Populations and Its Economic and Social Implications. New York: United Nations, 1956.

Παραπομπή σε μορφή MLA (8th εκδ.)

The Aging of Populations and Its Economic and Social Implications. United Nations, 1956.