Search U.S. government technical reports digitized or harvested by TRAIL.
International Conference of Mine-Safety Research at Buxton, England, July 31, 1931
Ground control aspects of coal mine design :Proceedings: Bureau of Mines Technology Transfer Seminar, Lexington, Ky., March 6, 1973
Ergonomics-human factors in mining ;proceedings, Bureau of Mines Technology Transfer Seminars, Pittsburgh, Pa., December 3, 1981, St. Louis, Mo., December 10, 1981, and Denver, Colo., December 15, 1981