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1 - 2 of 2 resultsSearch results for "class periods"
Consensus Study Report
Evolutionary and Revolutionary Technologies for Mining (2002)
National Research Council; National Materials Advisory Board; Board on Earth Sciences and Resources; Committee on Earth Resources; Committee on Technologies for the Mining Industries
Energy and Energy Conservation | Industry and Labor
Consensus Study Report
Competitiveness of the U.S. Minerals and Metals Industry (1990)
National Research Council; Division on Engineering and Physical Sciences; Commission on Engineering and Technical Systems; National Materials Advisory Board; Committee on Competitiveness of the U.S. Minerals and Metals Industry
Industry and Labor