@misc{indiciae1ae7a7200ab5,
  title = {Preliminary geologic map of the Coconino Point and Grandview Point quadrangles, Coconino County, Arizona},
  author = {George H. Billingsley and C.W. Barnes and George E. Ulrich},
  year = {1983},
  doi = {10.3133/ofr83731},
  url = {https://pubs.usgs.gov/publication/ofr83731},
  note = {Source identifier: ofr83731}
}