Columbia subject headings:
Church and state--Soviet Union--History.
Tikhon, Patriarch of Moscow and All Russia, 1865-1925.
Harvard subject headings:
Church and state--Soviet Union--History--1917-
Tikhon, Patriarch of Moscow and All Russia, 1865-1925.
Princeton subject headings:
Church and state--Soviet Union--History.
Tikhon, Patriarch of Moscow and All Russia, 1865-1925.