Title: Dei︠a︡telʹnostʹ menʹshevikov v profsoi︠u︡zakh pri sov. vlasti
Subjects: History, Labor unions, Soviet Union, Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡