@misc{indiciae911bcb563e9f,
  title = {Geophysical investigations in the Bi'r Idimah-Wadi Wassat area, Saudi Arabia, Part Two},
  author = {R. V. Allen and W. E. Davis},
  year = {1969},
  doi = {10.3133/ofr696},
  url = {https://pubs.usgs.gov/publication/ofr696},
  note = {Source identifier: ofr696}
}