@misc{indiciae4ecece5c17e6,
  title = {Reconnaissance geologic map of the Quijotoa Mountains Quadrangle, Pima County, Arizona},
  author = {J. J. Rytuba and A.B. Till and Will Blair and Gordon Haxel},
  year = {1978},
  doi = {10.3133/mf937},
  url = {https://pubs.usgs.gov/publication/mf937},
  note = {Source identifier: mf937}
}