توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

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.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

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

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

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