Columbia subject headings:
Church and state--Russia--History--16th century.
Ivan IV, Czar of Russia, 1530-1584.
Russia--Church history--16th century.
Russia--History--Ivan IV, 1533-1584.
Russia. Oprichnina.
Harvard subject headings:
Church and state--Russia--History--16th century.
Ivan IV, Czar of Russia, 1530-1584.
Russia--Church history--16th century.
Russia--History--Ivan IV, 1533-1584.
Russia. Oprichnina
Princeton subject headings:
Church and state--Russia--History--16th century.
Ivan IV, Czar of Russia, 1530-1584.
Russia--Church history--16th century.
Russia--History--Ivan IV, 1533-1584.
Russia. Oprichnina