Columbia subject headings:
Communism and society.
Social systems.
Harvard subject headings:
Communism and society.
Communist state.
Comparative government.
Europe, Eastern--Politics and government--1945-
Europe, Eastern--Politics and government.
Europe, Eastern--Social conditions.
Soviet Union--Politics and government--1917-1936.
Soviet Union--Politics and government.
Soviet Union--Social conditions--1917-1945.
Soviet Union--Social conditions.
Princeton subject headings: