Annual Report of the State Bureau of Labor Statistics Concerning Coal in Illinois Illinois. Department of Mines and Minerals Published: 1912 Total Pages: 476 Get eBook
Method of Securing Increased Safety and Economy in Illinois Bituminous Coal Mines Illinois Coal Operators Association Published: 1923 Total Pages: 36 Get eBook
Annual Coal Report of Illinois Illinois. State Mining Board Published: 1913 Total Pages: 444 Get eBook
Coal Report of Illinois Illinois. Dept. of Mines and Minerals Published: 1905 Total Pages: 524 Get eBook
Illinois Coal Mining Investigations, Cooperative Agreement Published: 1915 Total Pages: 484 Get eBook
Joint Convention of the Illinois Coal Operators Association and the United Mine Workers of America (District 12) Held at Springfield, Illinois, February 23 to March 7, 1903 ... Illinois Coal Operators Association Published: 1903 Total Pages: 238 Get eBook
Annual Coal Report of the Illinois Bureau of Labor Statistics Illinois. Bureau of Labor Statistics Published: 1910 Total Pages: 512 Get eBook
Illinois Coal Mining Investigations, Cooperative Coal Mining Series Illinois State Geological Survey Published: 1915 Total Pages: 792 Get eBook
