@misc{indiciaeb6611533fc24,
  title = {Geology of the Mahd Adh Dhahab District, Kingdom of Saudi Arabia},
  author = {A.M. Afifi},
  year = {1990},
  doi = {10.3133/ofr90315},
  url = {https://pubs.usgs.gov/publication/ofr90315},
  note = {Source identifier: ofr90315}
}