Title: " Nepronit︠s︡aemye nedra"
First published: 2007
Subjects: Internal security, History, Russian S.F.S.R. Chrezvychaĭnai︠a︡ komissii︠a︡ po borʹbe s kontr-revoli︠u︡t︠s︡ieĭ i sabotazhem, Russian S.F.S.R., Soviet Union. Obʺedinennoe gosudarstvennoe politicheskoe upravlenie, Soviet Union