Columbia subject headings:
Harvard subject headings:
Abendroth, Wolfgang.
Civics--Study and teaching--Germany--History--20th century.
Education--Political aspects--Germany--History--20th century
Political science--Study and teaching--Germany--History--20th century.
Princeton subject headings:
Civics--Study and teaching--Germany--History--20th century.
Education--Political aspects--Germany--History--20th century.
Political science--Study and teaching--Germany--History--20th century.