Columbia subject headings:
Communist strategy.
Perestroĭka.
World politics--1989-
Harvard subject headings:
Perestroĭka.
Soviet Union--Economic conditions--1985-1991.
Soviet Union--Economic policy--1986-1991.
Soviet Union--Social conditions--1970-1991.
Princeton subject headings:
Perestroĭka.
Soviet Union--Economic conditions--1985-1991.
Soviet Union--Economic policy--1986-1991.
Soviet Union--Social conditions--1970-1991.