@misc{indiciaea2a569b846e1,
  title = {Analytical data for gold in geological materials from the Butte 1° x 2° quadrangle, Montana},
  author = {W. L. Campbell and G.A. Nowlan and J.C. Antweiler},
  year = {1982},
  doi = {10.3133/ofr82598},
  url = {https://pubs.usgs.gov/publication/ofr82598},
  note = {Source identifier: ofr82598}
}