Columbia subject headings:
Catholic Church--Foreign relations--Germany (West)--Sources.
Germany (West)--Foreign relations--Catholic Church--Sources.
Harvard subject headings:
Catholic Church--Foreign relations--Germany--History--20th century--Sources.
Germany--Foreign relations--Catholic Church--Sources.
Princeton subject headings:
Catholic Church--Foreign relations--Germany (West)--History--Sources.
Germany (West)--Foreign relations--Catholic Church--History--Sources.