Columbia subject headings:
Church and state--Soviet Union--History.
Communism--Soviet Union.
Russian Orthodox Greek Catholic Church of America.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ.
Soviet Union--Church history.
Harvard subject headings:
Church and state--Soviet Union--History
Communism--Soviet Union
Russian Orthodox Greek Catholic Church of America.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ
Soviet Union--Church history.
Princeton subject headings:
Church and state--Soviet Union--History.
Communism--Soviet Union.
Russian Orthodox Greek Catholic Church of America.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ.
Soviet Union--Church history--1917-.