Columbia subject headings:
Catholic Church. Diocese of Trier (Germany)--History--20th century--Sources.
Church and state--Germany--Trier--History--20th century--Sources.
National socialism and religion--Germany--Trier--Sources.
Nationalsozialistische Deutsche Arbeiter-Partei--History--Sources.
Harvard subject headings:
Catholic Church. Diocese of Trier (Germany)--History--20th century--Sources.
Church and state--Germany--Trier--History--20th century--Sources.
National socialism and religion--Germany--Trier--Sources.
Nationalsozialistische Deutsche Arbeiter-Partei--History--Sources.
Princeton subject headings:
Catholic Church. Diocese of Trier (Germany)--History--Sources.
Church and state--Germany--Trier--History.
National socialism and religion--Germany--Trier--History.
Nationalsozialistische Deutsche Arbeiter-Partei--History.
Political parties--Germany--Trier--History.
Trier (Germany)--Church history.
Trier (Germany)--Politics and government.