@misc{indiciaef92a111e518c,
  title = {Airborne geophysical survey of the Ar Riyad quadrangle, sheet 24 I},
  author = {U.S. Geological Survey Saudi Arabia Mission and Saudi Arabia. Deputy Ministry for Mineral Resources},
  year = {1983},
  url = {https://pubs.usgs.gov/publication/70156951},
  note = {Source identifier: 70156951}
}