Columbia subject headings:
Harvard subject headings:
Cities and towns--Russia (Federation)--Volga River Region.
Excavations (Archaeology)--Russia (Federation)--Volga River Region
Golden Horde
Golden Horde--History
Russia (Federation)--Antiquities.
Russia--History--To 1533.
Volga River Region (Russia)--Antiquities.
Princeton subject headings:
Asia, Central--Antiquities.
Cities and towns, Medieval.
Volga River Valley (Russia)--Antiquities.