@misc{indiciaec1ef12c4ff6c,
  title = {Airborne geophysical survey of the Shaqra' quadrangle, sheet 25},
  author = {U.S. Geological Survey Saudi Arabia Mission and Saudi Arabia. Deputy Ministry for Mineral Resources},
  year = {1983},
  url = {https://pubs.usgs.gov/publication/70156959},
  note = {Source identifier: 70156959}
}