Catholic Church. Pope (1878-1903 : Leo XIII) & Leo XIII, P. (1978). Encyclical letter of Pope Leo XIII on Jesus Christ, our redeemer. St. Paul Editions.
Chicago-referens (17:e uppl.)Catholic Church. Pope (1878-1903 : Leo XIII) och Pope Leo XIII. Encyclical Letter of Pope Leo XIII on Jesus Christ, Our Redeemer. [Boston]: St. Paul Editions, 1978.
MLA-referens (8:e uppl.)Catholic Church. Pope (1878-1903 : Leo XIII) och Pope Leo XIII. Encyclical Letter of Pope Leo XIII on Jesus Christ, Our Redeemer. St. Paul Editions, 1978.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.