Columbia subject headings:
Russia (Federation)--Antiquities--Bibliography.
Russia (Federation)--Antiquities.
Volga River Valley (Russia)--Antiquities--Bibliography.
Volga River Valley (Russia)--Antiquities.
Harvard subject headings:
Russia (Federation)--Antiquities--Bibliography.
Russia (Federation)--Antiquities.
Volga River Valley (Russia)--Antiquities--Bibliography.
Volga River Valley (Russia)--Antiquities.
Princeton subject headings:
Ethnology--Russia (Federation)--Tatarstan.
Tatarstan (Russia)--Antiquities.