Columbia subject headings:
Harvard subject headings:
Orthodox Eastern Church--Ceremonies and practices.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Ceremonies and practices.
Princeton subject headings:
Orthodox Eastern Church--Ceremonies and practices.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Ceremonies and practices.