Catholic Church. Pope (1939-1958 : Pius XII) & Pius XII, P. Humani generis: Encyclical letter of Pope Pius XII : concering some false opinions which threaten to undermine the foundations of Catholic doctrine : Issued August 12, 1950. National Catholic Welfare Conference.
Chicago-viite (17. p.)Catholic Church. Pope (1939-1958 : Pius XII) ja Pope Pius XII. Humani Generis: Encyclical Letter of Pope Pius XII : Concering Some False Opinions Which Threaten to Undermine the Foundations of Catholic Doctrine : Issued August 12, 1950. Washington, D.C.: National Catholic Welfare Conference.
MLA-viite (8. p.)Catholic Church. Pope (1939-1958 : Pius XII) ja Pope Pius XII. Humani Generis: Encyclical Letter of Pope Pius XII : Concering Some False Opinions Which Threaten to Undermine the Foundations of Catholic Doctrine : Issued August 12, 1950. National Catholic Welfare Conference.