Catholic Church. Pope (1939-1958 : Pius XII). (1950). Humani generis: Encyclical letter of Pope Pius XII concerning some false opinions which treaten to undermine the foundations of Catholic doctrine. National Catholic Welfare Conference.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Catholic Church. Pope (1939-1958 : Pius XII). Humani Generis: Encyclical Letter of Pope Pius XII Concerning Some False Opinions Which Treaten to Undermine the Foundations of Catholic Doctrine. Washington, D.C.: National Catholic Welfare Conference, 1950.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Catholic Church. Pope (1939-1958 : Pius XII). Humani Generis: Encyclical Letter of Pope Pius XII Concerning Some False Opinions Which Treaten to Undermine the Foundations of Catholic Doctrine. National Catholic Welfare Conference, 1950.