Columbia subject headings:
Harvard subject headings:
Don River Valley (Russia)--Church history.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Russia (Federation)--Don River Valley.
Princeton subject headings:
Don River Valley (Russia)--Church history.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Russia (Federation)--Don River Valley.
Sects--Russia (Federation)--Don River Valley.