Columbia subject headings:
Harvard subject headings:
Christianity and culture.
Christianity--Soviet Union--History.
Christianity--Ukraine--History.
Kievan Rus--Church history--862-1237--Historiography.
Soviet Union--Civilization.
Ukraine--Church history.
Princeton subject headings:
Christianity--Kievan Rus--History.
Christianity--Russia--History.
Kievan Rus--Church history.
Russia--Church history.