Hull, E. R. What the Catholic Church is and what she teaches. Catholic Truth Society.
Chicago-referens (17:e uppl.)Hull, Ernest R. What the Catholic Church Is and What She Teaches. London: Catholic Truth Society.
MLA-referens (8:e uppl.)Hull, Ernest R. What the Catholic Church Is and What She Teaches. Catholic Truth Society.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.