Columbia subject headings:
Soviet Union--Economic conditions--1975-1985.
Soviet Union--Politics and government--1936-1953.
Soviet Union--Social conditions--1970-1991.
Harvard subject headings:
Soviet Union--Economic conditions--1975-1985.
Soviet Union--Economic conditions--1985-1991.
Soviet Union--Politics and government--1945-1991.
Soviet Union--Social conditions--1970-1991.
Princeton subject headings: