Columbia subject headings:
Conciliar theory--History.
Councils and synods (Canon law)--History.
Councils and synods--History.
Harvard subject headings:
Conciliar theory--History of doctrines--Modern period, 1500-
Councils and synods--History--Modern period, 1500-
Princeton subject headings:
Conciliar theory--History.
Councils and synods (Canon law)--History.
Councils and synods--History.