Tests of Salt as A Substitute For Rock Dust in the Prevention of Coal-Dust Explosions in Mines.
Contributors: Greenwald, H.P.; Howarth, H.C.; Hartmann, I.
Series: Report of investigations (United States. Bureau of Mines) -- 3529
Publisher: s.n
Published: 1940
Place of publication: S.l
Language: eng
Notes: 1