Title: Tretiĭ Vserossiĭskiĭ sʺezd profsoi︠u︡zov
Subjects: Labor unions, Congresses, Vsesoi︠u︡znyĭ sʺezd professionalʹnykh soi︠u︡zov (3rd : 1920 : Moscow, Russia)
Places: Soviet Union