Columbia subject headings:
Allegiance.
Catholic Church--Controversial literature.
Popes--Infallibility.
Vatican Council (1st : 1869-1870 : Basilica di San Pietro in Vaticano)
Harvard subject headings:
Catholic Church--Controversial literature.
Catholic Church--Doctrines.
Church of England--Controversial literature.
Church of England--Doctrinal and controversial works.
Vatican Council (1st : 1869-1870 : Basilica di San Pietro in Vaticano)
Princeton subject headings: