@misc{indiciaec8586c68e5ad,
  title = {Preliminary results of a gravity survey of the Henrys Lake quadrangle, Idaho and Montana},
  author = {Donald L. Peterson and Irving J. Witkind},
  year = {1975},
  url = {https://pubs.usgs.gov/publication/70164431},
  note = {Source identifier: 70164431}
}