@misc{indiciae786714770c36,
  title = {Geologic map of the Quartzsite quadrangle, Yuma County, Arizona},
  author = {Fred K. Miller},
  year = {1970},
  doi = {10.3133/gq841},
  url = {https://pubs.usgs.gov/publication/gq841},
  note = {Source identifier: gq841}
}