• publisher: Washington : G.P.O.
  • creator: United States. Bureau of Mines Geological Survey (U.S.)
  • contributor: United States. Bureau of Mines. Geological Survey (U.S.)
  • Keyword: Mines and mineral resources United States Periodicals. Mineral industries United States Periodicals.
  • years: 1883-1933.
  • pages: 79 v. :
  • language: eng
  • lccn: d
  • class: TN23
  • download: pdf file