Saltsman, R. D.
Methods for sampling noncombustible content of coal mine dust / R.D. Saaltsman and J. Grumer. - Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1975. - 15 p. : ill., tables. - Report of investigations ; 8050 . - United States. Bureau of Mines. Report of investigations ; 8050 . - Report of investigations (United States. Bureau of Mines) ; 8050 .
91055079
Mine dusts.
Methods for sampling noncombustible content of coal mine dust / R.D. Saaltsman and J. Grumer. - Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1975. - 15 p. : ill., tables. - Report of investigations ; 8050 . - United States. Bureau of Mines. Report of investigations ; 8050 . - Report of investigations (United States. Bureau of Mines) ; 8050 .
91055079
Mine dusts.