Columbia subject headings:
Chuvashia (Russia)--History.
Russians--Russia (Federation)--Chuvashia.
Harvard subject headings:
Chuvashia (Russia)--History.
Russians--Russia (Federation)--Chuvashia.
Russians--Russia (Federation)--Chuvashskai︠a︡ A.S.S.R.--Material culture.
Russians--Russia (Federation)--Chuvashskai︠a︡ A.S.S.R.--Social life and customs.
Princeton subject headings: