Columbia subject headings:
Mensheviks--Soviet Union--History.
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--History.
Soviet Union--Politics and government.
Harvard subject headings:
Mensheviks--Biography.
Socialist parties--Soviet Union--History.
Socialists--Soviet Union--Biography
Soviet Union--History--Revolution, 1917-1921.
Princeton subject headings:
Communism--Soviet Union--History--20th century.
Mensheviks--Soviet Union--History.
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--History.
Soviet Union--Politics and government.