Columbia subject headings:
Church and state--Soviet Union.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Soviet Union--History.
Soviet Union--Church history.
Harvard subject headings:
Christianity--Soviet Union
Church and state--Soviet Union--History
Communism and Christianity--Soviet Union.
Persecution--Soviet Union--History
Soviet Union--Church history
Soviet Union--Religion
Princeton subject headings:
Persecution--Russia--History--20th century.
Russia--Religion--History--20th century.