Title: Taĭnye operat︠s︡ii rossiĭskikh spet︠s︡sluzhb s IX po XXI vek
Subjects: Secret service, Police, Intelligence service, Federalʹnai︠a︡ sluzhba bezopasnosti Rossii, Internal security, Soviet Union, Soviet Union. Komitet gosudarstvennoĭ bezopasnosti, History