Monthly Statement of Coal-mine Fatalities in the United States Published: 1913 Total Pages: 20 Get eBook
Tables for Falls of Roof, Face, Or Rib Fatalities in Underground Coal Mines Published: 1992 Total Pages: 22 Get eBook
Coal-mine Fatalities in the United States, 1921 William Waugh Adams Published: 1922 Total Pages: 72 Get eBook
Coal-mine Fatalities in the United States, 1929 William Waugh Adams Published: 1931 Total Pages: 132 Get eBook
Coal-mine Fatalities in the United States, 1926 William Waugh Adams Published: 1927 Total Pages: 132 Get eBook