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United Nations Centre for Natural Resources, Energy and Transport. 1977. Recent advances in mining and processing of low-grade and submarginal deposits. viii + 192 pp. Contains 12 papers given at a conference in New York, April 1972 together with summaries of discussion sessions. New York, Oxford: Pergamon. Price $25.00. ISBN 0 08 021051 1.
Published online by Cambridge University Press:
01 May 2009
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