Title: "Severnyĭ soi͡u︡z russkikh rabochikh" i revoli͡u︡t͡s︡ionnoe rabochee dvizhenie 70-kh godov XIX v. v Peterburge
Subjects: Severnyĭ soi︠u︡z russkikh rabochikh, Labor and laboring classes, History, Working class, Severnyĭ soi͡uz russkikh rabochikh