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Availability of U.S. chromium resources,
Computer program for economic evaluations of underground bituminous coal mines
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Published Year
1970-1979 (2)
Subject
Bituminous coal (1)
Chromium ores--United States (1)
Coal mines and mining--Computer programs (1)
Author
Miller, Robert A. (2) *
Carrillo, Fred V., (1)
Kingston, Gary A. (1)
