@misc{indiciae70250b9f043d,
  title = {Geologic map and cross sections of the Pedregosa Mountains, Cochise County, Arizona},
  author = {Harald Drewes and W. E. Brooks},
  year = {1988},
  doi = {10.3133/i1827},
  url = {https://pubs.usgs.gov/publication/i1827},
  note = {Source identifier: i1827}
}