Columbia subject headings:
Harvard subject headings:
Perestroĭka.
Soviet Union--Intellectual life--1970-1991.
Soviet Union--Politics and government--1985-1991.
Soviet Union--Social life and customs--1970-1991.
Princeton subject headings:
Perestroĭka.
Soviet Union--Intellectual life--1970-1991.
Soviet Union--Politics and government--1985-1991.
Soviet Union--Social life and customs--1970-1991.