Columbia subject headings:
Harvard subject headings:
Elections--Germany--History--20th century
Germany--Politics and government--1933-1945.
Nationalsozialistische Deutsche Arbeiter-Partei--History.
Political campaigns--Germany--History--20th century.
Referendum--Germany--History--20th century.
Social classes--Political activity--Germany--History--20th century.
Princeton subject headings:
Elections--Germany--History--20th century.
Germany--Politics and government--1933-1945.
National socialism.