• publisher: Helena, Mont. : Air Quality Bureau, Dept. of Health and Environmental Sciences
  • creator: Raisch, Bob
  • contributor: Raisch, Bob.
  • Keyword: Copper industry and trade Montana History. Copper mines and mining Montana Butte. Mineral industries Environmental aspects Montana. Air Pollution Montana Butte.
  • years: 1979.
  • pages: [14] leaves ;
  • notes: At head of cover title: Montana air pollution study.
  • download: pdf file