@misc{indiciae386373745674,
  title = {Geophysical data from the Blacktail Mountain drilling site, Flathead County, Montana},
  author = {Louis J. O’Connor and B. D. Smith and James Henry Scott},
  year = {1979},
  doi = {10.3133/ofr79940},
  url = {https://pubs.usgs.gov/publication/ofr79940},
  note = {Source identifier: ofr79940}
}