Columbia subject headings:
Communism and intellectuals--Soviet Union--History--20th century.
Revolutions and socialism--Soviet Union--History--20th century.
Harvard subject headings:
Communism and intellectuals--Soviet Union--History--20th century.
Revolutions and socialism--Soviet Union--History--20th century.
Princeton subject headings:
Communism and intellectuals--Soviet Union--History--20th century.
Revolutions and socialism--Soviet Union--History--20th century.