@misc{indiciaeb3f43f908430,
  title = {The geologic setting of southern Arizona and southwestern New Mexico, with a rationale for assessment of undiscovered economically recoverable oil and gas; a summary of four potential plays},
  author = {William C. Butler},
  year = {1989},
  doi = {10.3133/ofr88450m},
  url = {https://pubs.usgs.gov/publication/ofr88450M},
  note = {Source identifier: ofr88450M}
}