@misc{indiciaeceec3360a664,
  title = {Cambrian(?), middle Proterozoic, and Archean rocks penetrated in a borehole near Argenta, Beaverhead County, Montana, and some paleogeographic and structural implications},
  author = {Robert Carl Pearson},
  year = {1996},
  doi = {10.3133/b2121b},
  url = {https://pubs.usgs.gov/publication/b2121B},
  note = {Source identifier: b2121B}
}