Title: Chetvërtyĭ (obʺedinitelʹnyĭ) sʺezd RSDRP
Subjects: History, Congresses, Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡. Sʺezd 1906 : Stockholm, Sweden)
Places: Russia