Columbia subject headings:
Harvard subject headings:
Christianity--Russia--History.
Kievan Rus--History.
Orthodox Eastern Church--Russia--History.
Russia--Church history.
Russia--History--To 1533.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--History.
Princeton subject headings:
Orthodox Eastern Church--Russia--History.
Russia--Church history.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--History.