@misc{indiciaedd90d724ad1e,
  title = {Geologic map of the Whitlock Mountains and vicinity, Graham County, Arizona},
  author = {D.H. Richter and M. Shafiqullah and Viki A. Lawrence},
  year = {1981},
  doi = {10.3133/i1302},
  url = {https://pubs.usgs.gov/publication/i1302},
  note = {Source identifier: i1302}
}