State of the art: historical perspective of smelting.
D000965:Antimony; D002104:Cadmium; D003300:Copper; D007854:Lead; D008669:Metallurgy; D008722:Methods; D009532:Nickel; D014481:United States; D015032:Zinc
D002104:Cadmium; D007854:Lead; D003300:Copper; D009532:Nickel; D000965:Antimony; D015032:Zinc