Respirable dust control : Bureau of mines Technology transfer seminars, Pittsburgf, Pa., Sept 21, 1976 and St. Louis, Mo., Sept. 23, 1976
Unted States.Department of the Interior
Respirable dust control : Bureau of mines Technology transfer seminars, Pittsburgf, Pa., Sept 21, 1976 and St. Louis, Mo., Sept. 23, 1976 - - Washington Bureau of Mines, 1977 - 121p. 27 cm - .
0
Dust control-Congresses
628.53:66.067.33 Uni:76
Respirable dust control : Bureau of mines Technology transfer seminars, Pittsburgf, Pa., Sept 21, 1976 and St. Louis, Mo., Sept. 23, 1976 - - Washington Bureau of Mines, 1977 - 121p. 27 cm - .
0
Dust control-Congresses
628.53:66.067.33 Uni:76