Philadelphia, A. C. H. S. o. (1963). Catholicity in Philadelphia and a Guide to the Historic Sites. Philadelphia.
Chicago-referens (17:e uppl.)Philadelphia, American Catholic Historical Society of. Catholicity in Philadelphia and a Guide to the Historic Sites. Philadelphia, 1963.
MLA-referens (8:e uppl.)Philadelphia, American Catholic Historical Society of. Catholicity in Philadelphia and a Guide to the Historic Sites. Philadelphia, 1963.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.