@misc{indiciaedb130a231a70,
  title = {Geologic map of the Hat Knoll quadrangle, northern Mohave County, Arizona},
  author = {George H. Billingsley},
  year = {1994},
  doi = {10.3133/ofr94554},
  url = {https://pubs.usgs.gov/publication/ofr94554},
  note = {Source identifier: ofr94554}
}