Columbia subject headings:
Catholic Church--Bishops--Congresses.
Catholic Church--Dioceses--Congresses.
Catholic Church--History--20th century--Congresses.
Church history--Middle Ages, 600-1500--Congresses.
Vatican Council (2nd : 1962-1965 : Basilica di San Pietro in Vaticano)--Congresses.
Harvard subject headings:
Catholic Church--Bishops--Congresses.
Catholic Church--Dioceses--Congresses.
Catholic Church--History--20th century--Congresses.
Church history--Middle Ages, 600-1500--Congresses.
Vatican Council (2nd : 1962-1965 : Basilica di San Pietro in Vaticano)--Congresses.
Princeton subject headings:
Catholic Church--Bishops--Congresses.
Catholic Church--Dioceses--Congresses.
Catholic Church--History--20th century--Congresses.
Church history--Middle Ages, 600-1500--Congresses.
Vatican Council (2nd : 1962-1965 : Basilica di San Pietro in Vaticano)--Congresses.