Columbia subject headings:
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--History--Sources.
Soviet Union--History--Revolution, 1917-1921.
Harvard subject headings:
Mensheviks
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--Sources.
Soviet Union--History--Revolution, 1917-1921--Sources.
Princeton subject headings:
Mensheviks.
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--History--Sources.
Soviet Union--History--Revolution, 1917-1921.