Columbia subject headings:
Communism and intellectuals--Soviet Union--History.
Intellectuals--Soviet Union--History.
Soviet Union--History--Revolution, 1917-1921.
Harvard subject headings:
Intellectuals--Soviet Union
Russia--History--February Revolution, 1917
Princeton subject headings:
Communism and intellectuals--Soviet Union--History.
Intellectuals--Soviet Union--Political activity--History.
Russia--History--February Revolution, 1917.