Columbia subject headings:
Lenin, Vladimir Ilʹich, 1870-1924.
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--History.
Socialists--Soviet Union.
Soviet Union--Politics and government--1917-1936.
Harvard subject headings:
Lenin, Vladimir Ilʹich, 1870-1924
Mensheviks.
Political persecution--Soviet Union--History.
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--History.
Socialist parties--Soviet Union--History.
Soviet Union--History--Revolution, 1917-1921.
Princeton subject headings:
Lenin, Vladimir Ilích, 1870-1924.
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--History.
Socialists--Soviet Union.
Soviet Union--Politics and government--1917-1936.