Columbia subject headings:
American newspapers.
Popes--Infallibility.
Vatican Council (1st : 1869-1870 : Basilica di San Pietro in Vaticano)
Harvard subject headings:
American newspapers
Popes--Infallibility
Vatican Council (1st : 1869-1870 : Basilica di San Pietro in Vaticano)
Princeton subject headings:
American newspapers.
Popes--Infallibility.
Vatican Council (1st : 1869-1870)