Production of high-purity gold from zinc precipitates and steel wool cathodes by hydrometallurgical refining T Technology
Video-supplemented task training at the United States Steel Corp. Minntac Mine, Mt. Iron, MN / by D.T. Couillard, B.C. Nelson, and R.R. Tomassoni. Information circular / United States Department of the Interior, Bureau of Mines ; 8999 T Technology
Primary lead and zinc availability–market economy countries : a minerals availability program appraisal T Technology
