Title: Istirātizhī-i ittiḥādhā-yi ṭabaqātī
Subjects: Labor, History, Social conflict, Socialism, Working class, Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za, Kommunisticheskai͡a partii͡a Sovetskogo Soi͡uza
Places: Soviet Union