@misc{indiciaedb58f9cc539f,
  title = {Precambrian and Lower Ordovician rocks in east-central Idaho},
  author = {Edward Thompson Ruppel and R. J. Ross and David Schleicher},
  year = {1975},
  doi = {10.3133/pp889},
  url = {https://pubs.usgs.gov/publication/pp889},
  note = {Source identifier: pp889}
}