Columbia subject headings:
Mass--Celebration--Sermons.
Prediger und Katechet.
Harvard subject headings:
Catholic Church--Liturgy--History--20th century.
Catholic Church--Sermons--History and criticism.
Liturgics--History--20th century.
Pastoral theology--Catholic Church.
Prediger und Katechet.
Vatican Council (2nd : 1962-1965 : Basilica di San Pietro in Vaticano)
Princeton subject headings: