Columbia subject headings:
Communism--Soviet Union--History.
Soviet Union--History--1953-1985.
Soviet Union--History--1985-1991.
Harvard subject headings:
Communism--Soviet Union--History
Soviet Union--History--1953-1985.
Soviet Union--History--1985-1991.
Soviet Union--Politics and government--1945-1991.
Princeton subject headings:
Communism--Soviet Union--History--20th century.
Soviet Union--History--1953-1985.
Soviet Union--History--1985-1991.
Soviet Union--Politics and government--1945-1991.