@misc{indiciae1d74cb9d775d,
  title = {General geology of central Cochise County, Arizona, with sections on age and correlation},
  author = {James Gilluly and A. R. Palmer and J. S. Williams and J.B. Reeside},
  year = {1956},
  doi = {10.3133/pp281},
  url = {https://pubs.usgs.gov/publication/pp281},
  note = {Source identifier: pp281}
}