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Productivity, mortality, and technology in European and US coal mining, 1800-1913
Silvestre Rodríguez, Javier, (2021)
Coal : production, distribution, utilisation
Pope, P. C., (1949)
Coal demand, market forces, and US coal mine closures
Jordan, Brett, (2018)
Bibliography of United States Bureau of Mines investigations on coal and its products 1910-1930
Fieldner, Arno Carl, (1931)