Newman, J. H. (1907). Certain difficulties felt by Anglicans in Catholic teaching considered. Longmans, Green.
Chicago-referens (17:e uppl.)Newman, John Henry. Certain Difficulties Felt by Anglicans in Catholic Teaching Considered. London: Longmans, Green, 1907.
MLA-referens (8:e uppl.)Newman, John Henry. Certain Difficulties Felt by Anglicans in Catholic Teaching Considered. Longmans, Green, 1907.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.