Columbia subject headings:
Harvard subject headings:
Perestroĭka.
Post-communism--Russia (Federation)
Putin, Vladimir Vladimirovich, 1952-
Russia (Federation)--Politics and government--1991-
Soviet Union--Politics and government--1985-1991.
Princeton subject headings:
Perestroĭka.
Putin, Vladimir Vladimirovich, 1952-
Russia (Federation)--Politics and government--20th century.
Soviet Union--Politics and government.