APA-referens (7:e uppl.)

Catholic Church. Pope (1939-1958 : Pius XII) & Pius XII, P. On function of state in the modern world: Encyclical letter of His Holiness Pope Pius XII. St. Paul Editions.

Chicago-referens (17:e uppl.)

Catholic Church. Pope (1939-1958 : Pius XII) och Pope Pius XII. On Function of State in the Modern World: Encyclical Letter of His Holiness Pope Pius XII. Boston: St. Paul Editions.

MLA-referens (8:e uppl.)

Catholic Church. Pope (1939-1958 : Pius XII) och Pope Pius XII. On Function of State in the Modern World: Encyclical Letter of His Holiness Pope Pius XII. St. Paul Editions.