@article{217619,
      note = {Cover title.},
      author = {Hayes, Timothy Scott.},
      url = {http://library.usi.edu/record/217619},
      title = {A preliminary study of thermometry and metal sources of  the Spar Lake strata-bound copper-silver deposit, Belt  Supergroup, Montana [microform] /},
      publisher = {U.S. Geological Survey,},
      recid = {217619},
      pages = {ii, 30 p. :},
      address = {[Denver, CO] :},
      year = {1990},
}