Columbia subject headings:
Perestroĭka--History.
Soviet Union--Economic policy--1986-1991.
Soviet Union--History--1985-1991.
Soviet Union--History--Autonomy and independence movements.
Soviet Union--Politics and government--1985-1991.
Harvard subject headings:
Perestroĭka--History.
Soviet Union--Economic policy--1986-1991.
Soviet Union--History--1985-1991.
Soviet Union--History--Autonomy and independence movements.
Soviet Union--Politics and government--1985-1991.
Princeton subject headings:
Former Soviet republics--Politics and government.
Soviet Union--History--1985-1991.
Soviet Union--Politics and government--1985-1991.