Fremantle, A. (1956). The papal encyclicals in their historical context. A Mentor Book.
Chicago-referens (17:e uppl.)Fremantle, Anne. The Papal Encyclicals in Their Historical Context. New York: A Mentor Book, 1956.
MLA-referens (9:e uppl.)Fremantle, Anne. The Papal Encyclicals in Their Historical Context. A Mentor Book, 1956.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.