@misc{indiciaec9c7abbb42a3,
  title = {Geologic map of the Wolf Hole Mountain and vicinity, Mohave County, northwestern Arizona},
  author = {G. H. Billingsley},
  year = {1993},
  doi = {10.3133/i2296},
  url = {https://pubs.usgs.gov/publication/i2296},
  note = {Source identifier: i2296}
}