Columbia subject headings:
Harvard subject headings:
Iron--Silesia--Metallurgy.
Metal-work, Prehistoric--Silesia.
Przeworsk culture--Silesia.
Silesia--Antiquities.
Smelting--Silesia.
Princeton subject headings:
Iron--Silesia--Metallurgy.
Metal-work, Prehistoric--Silesia.
Przeworsk culture--Silesia.
Silesia--Antiquities.
Smelting--Silesia.