@misc{indiciae6d98b45321c4,
  title = {Progress report on geochemistry of the Butte 1 degree x 2 degrees Quadrangle, Montana},
  author = {J.C. Antweiler and W. L. Campbell},
  year = {1982},
  doi = {10.3133/ofr82620},
  url = {https://pubs.usgs.gov/publication/ofr82620},
  note = {Source identifier: ofr82620}
}