(1907). Programme of the Arrangements for the Gregorian Summer School to be held in the Cathedral City of Cincinnati, Ohio. Cincinnati.
Chicago-referens (17:e uppl.)Programme of the Arrangements for the Gregorian Summer School to Be Held in the Cathedral City of Cincinnati, Ohio. Cincinnati, 1907.
MLA-referens (8:e uppl.)Programme of the Arrangements for the Gregorian Summer School to Be Held in the Cathedral City of Cincinnati, Ohio. Cincinnati, 1907.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.