• publisher: [Washington] : U.S. Dept. of the Interior, Bureau of Mines
  • creator: Cummins, D. (David) Pangerl, S. F., joint author
  • contributor: Pangerl, S. F., joint author.
  • Keyword: Electricity in mining Safety measures. Storage batteries Safety measures. Mine explosions.
  • years: 1981.
  • pages: 11 p. ;
  • class: TN295 TN343
  • download: pdf file