@misc{indiciaeb400b51a4cee,
  title = {Areas in the southern Najd quadrangle, Saudi Arabia, recommended for mineral investigations},
  author = {Jesse William Whitlow},
  year = {1971},
  doi = {10.3133/ofr71323},
  url = {https://pubs.usgs.gov/publication/ofr71323},
  note = {Source identifier: ofr71323}
}