Columbia subject headings:
Harvard subject headings:
Kievan Rus--History.
Russia--Church history.
Russia--History--To 1533.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--History.
Princeton subject headings:
Belarus--Church history.
Orthodox Eastern Church--Soviet Union--History.
Russia (Federation)--Church history.
Ukraine--Church history.