@misc{indiciaea983141c572e,
  title = {Geographic map of the Asir quadrangle, Kingdom of Saudi Arabia},
  author = {Glen F. Brown and Roy O. Jackson},
  year = {1968},
  doi = {10.3133/i217b},
  url = {https://pubs.usgs.gov/publication/i217B},
  note = {Source identifier: i217B}
}