Leo XIII, P. C. C. P. (1895). Apostolic letter of Pope Leo XIII to the English people. S.l..
Chicago-referens (17:e uppl.)Leo XIII, Pope; Catholic Church. Pope. Apostolic Letter of Pope Leo XIII to the English People. S.l., 1895.
MLA-referens (8:e uppl.)Leo XIII, Pope; Catholic Church. Pope. Apostolic Letter of Pope Leo XIII to the English People. S.l., 1895.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.