Columbia subject headings:
Harvard subject headings:
Perestroĭka
Russia (Federation)--Politics and government--1991-
Soviet Union--Politics and government--1953-1985.
Soviet Union--Politics and government--1985-1991.
Princeton subject headings:
Perestroĭka.
Russia (Federation)--Politics and government--1991-
Soviet Union--Politics and government--1953-1985.
Soviet Union--Politics and government--1985-1991.