Columbia subject headings:
Catholic Church--Germany--History.
Deutsche Zentrumspartei--History.
Germany--Politics and government--1918-1933.
Harvard subject headings:
Catholic Church--Germany--History.
Deutsche Zentrumspartei--History.
Germany--Politics and government--1918-1933
Princeton subject headings:
Catholic Church--Germany--History.
Deutsche Zentrumspartei--History.
Germany--Politics and government--1918-1933.