Catholic Church. Pope (1939-1958 : Pius XII) & Pius XII, P. (1947). St. Benedict: Encyclical letter of Pope Pius XII on St. Benedict of Nursia. National Catholic Welfare Conference.
Chicago-referens (17:e uppl.)Catholic Church. Pope (1939-1958 : Pius XII) och Pope Pius XII. St. Benedict: Encyclical Letter of Pope Pius XII on St. Benedict of Nursia. Washington: National Catholic Welfare Conference, 1947.
MLA-referens (8:e uppl.)Catholic Church. Pope (1939-1958 : Pius XII) och Pope Pius XII. St. Benedict: Encyclical Letter of Pope Pius XII on St. Benedict of Nursia. National Catholic Welfare Conference, 1947.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.