@misc{indiciae63fcd568af8d,
  title = {Topographic map of the Arabian Peninsula},
  author = {U.S. Geological Survey Saudi Arabian Project and Saudi Arabia. Mudīrīyah al-ʻĀmmah lil-Tharwah al-Maʻdinīyah},
  year = {1972},
  url = {https://pubs.usgs.gov/publication/70156979},
  note = {Source identifier: 70156979}
}