Columbia subject headings:
Harvard subject headings:
Iron age--Russia (Federation)--Khakasskai͡a Respublika.
Iron age--Russia (Federation)--Khakasskai︠a︡ avtonomnai︠a︡ oblastʹ.
Metallurgy--Russia (Federation)--Khakasskai͡a Respublika--History.
Metallurgy--Russia (Federation)--Khakasskai︠a︡ avtonomnai︠a︡ oblastʹ--History.
Princeton subject headings:
Iron age--Russia (Federation)--Khakasskaya avtonomnaya oblastʹ.
Metallurgy--Russia (Federation)--Khakasskai︠a︡ autonomnai︠a︡ oblastʹ--History.