Percentage of extraction of bituminous coal with special reference to Illinois conditions

著者
    • Young, Clinton Mason
    • Illinois. State geological survey
    • United States. Bureau of mines
    • Illinois. University
書誌事項

Percentage of extraction of bituminous coal with special reference to Illinois conditions

by C.M. Young

(University of Illinois bulletin, vol. 14, no. 42)(University of Illinois Engineering Experiment Station, Bulltein no. 100)

University of Illinois, 1917

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