Wesson, Thomas C.

Elemental composition of coal mine dust / by T.C. Wesson and F.E. Armstrong. - [Washington] : U.S. Dept. of the Interior, Bureau of Mines, [1974]. - 25 p. - Report of investigations ; 7992 . - United States. Bureau of Mines. Report of investigations ; 7992 . - Report of investigations (United States. Bureau of Mines) ; 7992 .

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Mine dusts.