Title: Vneocherednoĭ XXI sʺezd Kommunisticheskoĭ partii Sovetskogo Soi︠u︡za
Subjects: Communism, Congresses, Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za, Politics and government
Places: Soviet Union
Time periods: 1953-1985