@misc{indiciaece25c35900fc,
  title = {Preliminary geologic map of the Agathla Peak quadrangle, Arizona},
  author = {I. J. Witkind and J. D. Sears and E. J. McKay and Douglas H. Johnson and T.L. Finnell},
  year = {1953},
  doi = {10.3133/ofr53271},
  url = {https://pubs.usgs.gov/publication/ofr53271},
  note = {Source identifier: ofr53271}
}