Abell, A. I. The Catholic factor in urban welfare: The early period, 1850-1880. [publisher not identified].
Chicago-referens (17:e uppl.)Abell, Aaron Ignatius. The Catholic Factor in Urban Welfare: The Early Period, 1850-1880. [Place of publication not identified]: [publisher not identified].
MLA-referens (8:e uppl.)Abell, Aaron Ignatius. The Catholic Factor in Urban Welfare: The Early Period, 1850-1880. [publisher not identified].
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.