Columbia subject headings:
Iron age--Russia (Federation)--Kama River Valley.
Iron age--Russia (Federation)--Volga River Valley.
Kama River Region (Russia)--Antiquities.
Metallurgy--Russia (Federation)--Kama River Valley--History.
Metallurgy--Russia (Federation)--Volga River Valley--History.
Volga River Region (Russia)--Antiquities.
Harvard subject headings:
Iron age--Russia (Federation)--Kama River Region.
Iron age--Russia (Federation)--Volga River Region.
Iron--Metallurgy--History
Kama River Region (R.S.F.S.R.)--Antiquities.
Kama River Region (Russia)--Antiquities.
Volga River Region (Russia)--Antiquities.
Princeton subject headings:
Iron age--Russia (Federation)--Kama River Valley.
Iron age--Russia (Federation)--Volga River Valley.
Kama River Valley (Russia)--Antiquities.
Metallurgy--Russia (Federation)--Kama River Valley--History.
Metallurgy--Russia (Federation)--Volga River Valley--History.
Volga River Valley (Russia)--Antiquities.