New steelmaking technology from the Bureau of Mines : proceedings of an open industry briefing held in association with the Electric Furnace Conference, December 8, 1987, Chicago, IL / compiled by staff, Bureau of Mines (Information circular ; 9195)
New steelmaking technology from the Bureau of Mines : proceedings of an open industry briefing held in association with the Electric Furnace Conference, December 8, 1987, Chicago, IL / compiled by staff, Bureau of Mines