Columbia subject headings:
Communism--Soviet Union--History.
Soviet Union--Economic conditions.
Soviet Union--Politics and government.
Soviet Union--Social conditions.
Harvard subject headings:
Communism and society.
Communism--Soviet Union
Soviet Union--Politics and government--1917-1936.
Soviet Union--Politics and government.
Soviet Union--Social conditions--1917-1945.
Soviet Union--Social conditions.
Soviet Union--Social policy.
Princeton subject headings:
Communism--Soviet Union.
Soviet Union--Politics and government.
Soviet Union--Social conditions.
Soviet Union--Social policy.