Columbia subject headings:
Perestroĭka.
Soviet Union--Social conditions--1970-1991.
Harvard subject headings:
Perestroĭka.
Socialism and society.
Socialism--Soviet Union--20th century.
Socialism--Soviet Union--History--20th century.
Soviet Union--Economic policy--1986-1991.
Soviet Union--Politics and government--1985-1991.
Soviet Union--Social conditions--1970-1991.
Soviet Union--Social policy.
Princeton subject headings:
Perestroĭka.
Soviet Union--Social conditions--1985-.
Soviet Union--Social policy.