Title: Kazanskai︠a︡ gubernskai︠a︡ chrezvychaĭnai︠a︡ komissii︠a︡, 1917-1922 gg
Subjects: History, Internal security, Secret service, Kazanskai͡a gubernskai͡a chrezvychaĭnai͡a komissii͡a, Sources, Kazanskai︠a︡ gubernskai︠a︡ chrezvychaĭnai︠a︡ komissii︠a︡
Places: Russia (Federation), Tatarstan