Columbia subject headings:
Chuvashia (Russia)--Antiquities.
Ethnology--Russia (Federation)--Chuvashia.
Harvard subject headings:
Chuvashia (Russia)--Antiquities.
Chuvashia (Russia)--Social life and customs.
Ethnology--Russia (Federation)--Chuvashskai︠a︡ A.S.S.R.
Excavations (Archaeology)--Russia (Federation)--Chuvashskai︠a︡ A.S.S.R.
Russia (Federation)--Antiquities.
Princeton subject headings: