Columbia subject headings:
Russian language--Dialects--Russia (Federation)--Smolenskai︠a︡ oblastʹ--Dictionaries.
Harvard subject headings:
Russian language--Dialects--Russia (Federation)--Smolenskai︠a︡ oblastʹ--Dictionaries.
Princeton subject headings:
Russian language--Dialects--Russia (Federation)--Smolenskai︠a︡ oblastʹ--Dictionaries.