Columbia subject headings:
Harvard subject headings:
Internal security--Russia (Federation)--Ri͡azanskai͡a oblastʹ
Russian S.F.S.R. Chrezvychaĭnai︠a︡ komissii︠a︡ po borʹbe s kontr-revoli︠u︡t︠s︡ieĭ i sabotazhem
Princeton subject headings:
Espionage--Russia (Federation)--Ri︠a︡zanskai︠a︡ oblastʹ--Biography.
Ri︠a︡zanskai︠a︡ oblastʹ (Russia)--History.
Russian S.F.S.R. Chrezvychaĭnai︠a︡ komissii︠a︡ po borʹbe s kontr-revoli︠u︡t︠s︡ieĭ i sabotazhem--Officers and employees--Biography.
Spies--Russia (Federation)--Ri︠a︡zanskai︠a︡ oblastʹ--Biography.