Παραπομπή σε μορφή APA (7η εκδ.)

Catholic Church. Pope (1922-1939 : Pius XI) & National Catholic Welfare Conference. (1942). Quadragesimo anno: Encyclical letter on reconstructing the social order. National Catholic Welfare Conference.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Catholic Church. Pope (1922-1939 : Pius XI) και National Catholic Welfare Conference. Quadragesimo Anno: Encyclical Letter on Reconstructing the Social Order. Washington, D.C.: National Catholic Welfare Conference, 1942.

Παραπομπή σε μορφή MLA (8th εκδ.)

Catholic Church. Pope (1922-1939 : Pius XI) και National Catholic Welfare Conference. Quadragesimo Anno: Encyclical Letter on Reconstructing the Social Order. National Catholic Welfare Conference, 1942.