Columbia subject headings:
Catholic Church--Germany--History--1945---Congresses.
Christian education--Germany--History--20th century--Congresses.
Europe--Church history--20th century--Congresses.
Germany--Church history--1945---Congresses.
Islamic religious education--Germany--Congresses.
Religion and sociology--Germany--History--20th century--Congresses.
Harvard subject headings:
Catholic Church--Germany--History--1945---Congresses.
Christian education--Germany--History--20th century--Congresses.
Christian life--Germany--History--20th century--Congresses.
Europe--Church history--20th century--Congresses.
Germany--Church history--1945---Congresses.
Religion and sociology--Congresses
Religious life--Congresses.
Socialization--Germany--History--20th century--Congresses.
Princeton subject headings:
Catholic Church--Germany--History--1945---Congresses.
Christian education--Germany--History--20th century--Congresses.
Europe--Church history--20th century--Congresses.
Germany--Church history--1945---Congresses.
Islamic religious education--Germany--Congresses.
Religion and sociology--Germany--History--20th century--Congresses.