Title: Pervyĭ sʺezd RSDRP
Subjects: Socialism, Congresses, Communism, Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡. Sʺezd 1898 : Minsk, Belarus)