Columbia subject headings:
Church--History of doctrines.
Conciliar theory--History of doctrines.
Popes--Infallibility--History of doctrines.
Thomas, Aquinas, Saint, 1225?-1274. Summa theologica.
Harvard subject headings:
Conciliar theory--History of doctrines.
Popes--Infallibility
Popes--Primacy
Thomas, Aquinas, Saint, 1225?-1274. Summa theologica.
Princeton subject headings: