Columbia subject headings:
Harvard subject headings:
Soviet Union--History--Revolution, 1917-1921.
Soviet Union--Politics and government--1917-1936.
Princeton subject headings:
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡ (bolʹshevikov)--History.
Russia--History--Errors, inventions, etc.
Soviet Union--Politics and government.