Columbia subject headings:
Nikon, Patriarch of Moscow and of Russia, 1605-1681.
Harvard subject headings:
Nikon, Patriarch of Moscow and of Russia, 1605-1681.
Orthodox Eastern Church--Russia--Liturgy--History--17th century.
Russia--Church history--17th century.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--History--17th century.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Liturgy--History--17th century.
Princeton subject headings: