@misc{indiciae372caa635e13,
  title = {Geophysical investigations in the Mahd adh Dhahab district, Kingdom of Saudi Arabia, with a section on shallow seismic refraction profiles},
  author = {M. E. Gettings and Habib Merghelani},
  year = {1981},
  doi = {10.3133/ofr81828},
  url = {https://pubs.usgs.gov/publication/ofr81828},
  note = {Source identifier: ofr81828}
}