Jacobs, Howard D.
Production of metallic concentrates from high-silica iron ores - Washington Bureau of Mines 1969 - 17 p. il 26 cm - RI 7314 .
iron ores
669
Production of metallic concentrates from high-silica iron ores - Washington Bureau of Mines 1969 - 17 p. il 26 cm - RI 7314 .
iron ores
669