• publisher: [Avondale, Md.] : U.S. Dept. of the Interior, Bureau of Mines
  • creator: United States. Bureau of Mines. Division of Health and Safety Technology
  • Keyword: Mine safety Research United States. Mine sanitation Research United States.
  • years: 1983.
  • pages: ii, 20 p. ;
  • class: TN295
  • download: pdf file