Title: Politbi︠u︡ro i "vrediteli"
Subjects: Sources, History, Economic security, Political persecution, Collectivization of agriculture, Subversive activities, T︠S︡K VKP(b). Politbi︠u︡ro, T͡SK VKP(b). Politbi͡uro
Places: Soviet Union
Time periods: 1917-1936