Weber, J. C.Maurer, Ruth A.Trimmer, Edith2022-06-012022-06-011983https://hdl.handle.net/11124/13880Includes bibliographical references.masters thesesengCopyright of the original work is retained by the author.Coal mines and mining -- Colorado -- Safety measuresIndustrial accidents-- Colorado -- CostsAccident insurance-- ColoradoManagement of occupational injury costs for the Colorado underground coal industryText