• publisher: [Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines
  • creator: Bibawy, Nabil A United States. Bureau of Mines
  • contributor: United States. Bureau of Mines.
  • Keyword: Standards of mass Calibration. Helium Analysis.
  • years: 1989.
  • pages: 14 p. :
  • class: TN295 QC105
  • download: pdf file