Columbia subject headings:
Catholic Church--Doctrines--Periodicals.
Religion--Study and teaching--Periodicals.
Theology--Periodicals.
Theology--Study and teaching--Periodicals.
Harvard subject headings:
Catholic Church--Doctrines--History--Periodicals.
Religion--Study and teaching--Periodicals.
Theology--Periodicals
Theology--Study and teaching--Periodicals.
Princeton subject headings: