Columbia subject headings:
Egorʹevskīĭ ui︠e︡zd (Russia)--Church history.
Old Believers--Russia (Federation)--Egorʹevskīĭ ui︠e︡zd--History.
Old Believers--Russia (Federation)--Ri︠a︡zanskai︠a︡ oblastʹ--History.
Ri︠a︡zanskai︠a︡ oblastʹ (Russia)--Church history.
Harvard subject headings:
Old Believers--Russia (Federation)--Ri͡azanskai͡a oblastʹ--History.
Ri︠a︡zanskai︠a︡ oblastʹ (Russia)--Church history.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Russia (Federation)--Ri͡azanskai͡a oblastʹ--History.
Princeton subject headings:
Old Believers--Russia (Federation)--Ri︠a︡zanskai︠a︡ oblastʹ--History.
Ri︠a︡zanskai︠a︡ oblastʹ (Russia)--Church history.
Russkai︠a︡ pravoslavnai︠a︡ t︠s︡erkovʹ--Russia (Federation)--Ri︠a︡zanskai︠a︡ oblastʹ--History.