eitors, Carl H. Cotterill, John M. Cigan ; sponcered by Extractive Metallurgy Division, The Metallurgical Society of AIME, Mining & Exploration Division, Minerals Beneficiation Division, Society of Mining Engineers of AIME
American Institute of Mining, Metallurgical, and Petroleum Engineers1970AIME World Symposium on Mining & Metallurgy of Lead & Zinc
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