@misc{indiciae4fbba8d801cd,
  title = {Geology of the Asir quadrangle, Kingdom of Saudi Arabia},
  author = {Glen F. Brown and Roy O. Jackson},
  year = {1959},
  doi = {10.3133/i217a},
  url = {https://pubs.usgs.gov/publication/i217A},
  note = {Source identifier: i217A}
}