Columbia subject headings:
Nikon, Patriarch of Moscow and of Russia, 1605-1681.
Old Believers--Russia--History--17th century.
Russia--Church history--17th century.
Russia--History--1613-1689.
Harvard subject headings:
Nikon, Patriarch of Moscow and of Russia, 1605-1681.
Old Believers--Russia--History--17th century.
Old Believers--Soviet Union--History--17th century.
Russia--Church history--17th century.
Russia--History--1613-1689.
Princeton subject headings:
Nikon, Patriarch of Moscow and of Russia, 1605-1681.
Old Believers--Russia--History--17th century.
Russia--Church history--17th century.
Russia--History--1613-1689.