Columbia subject headings:
Europe, Eastern--Politics and government--1989-
Perestroĭka.
Harvard subject headings:
Europe, Eastern--Politics and government--1989-
Europe--Politics and government--1989-
National liberation movements--Europe, Eastern.
Perestroĭka--Europe, Eastern.
Perestroĭka.
Princeton subject headings:
Europe, Eastern--Politics and government--1989-
Perestroĭka.