Columbia subject headings:
Harvard subject headings:
Germany--Politics and government--1918-1933
Kommunistische Partei Deutschlands--History--20th century.
Labor movement--Germany--History--20th century
Nationalsozialistische Deutsche Arbeiter-Partei--History.
Princeton subject headings:
Germany--Politics and government--1918-1933.
Kommunistische Partai Deutschlands--History--20th century.
Labor movement--Germany--History--20th century.
Nationalsozialistische Deutsche Arbeiter-Partei--History.