Columbia subject headings:
Harvard subject headings:
Islam--Russia (Federation)--Tatarstan--History.
Islam--Russia (Federation)--Volga-Ural Region.
Volga-Ural Region (Russia)--Religion.
Princeton subject headings:
Islam--Russia (Federation)--Tatarstan--History.
Islam--Russia (Federation)--Volga-Ural Region.
Volga-Ural Region (Russia)--Religion.