Columbia subject headings:
Harvard subject headings:
Communism--Europe--History--20th century
Europe--History--20th century.
Europe--Politics and government--20th century.
Europe--Social life and customs--20th century.
Holocaust, Jewish (1939-1945)--Europe.
National socialism--Europe--History--20th century.
Princeton subject headings:
Democratization--Europe--History--20th century.
Dictatorship--Europe--History--20th century.
Europe--Politics and government--1945-