Columbia subject headings:
Communism--Soviet Union.
Soviet Union--Civilization.
Soviet Union--Politics and government--1985-1991.
Harvard subject headings:
Communism--Soviet Union
Soviet Union--Civilization.
Soviet Union--Politics and government--1985-1991.
Princeton subject headings:
Authors, Soviet--20th century--Attitudes.
Perestroĭka.
Soviet Union--Intellectual life--1970-1991.
Soviet Union--Politics and government--1985-1991.