@misc{indiciae42b08ff1b8c5,
  title = {Preliminary geophysical investigation of the Wadi Yiba copper prospect, Saudi Arabia},
  author = {W. E. Davis and Mohammed N. Akhrass},
  year = {1969},
  doi = {10.3133/ofr6968},
  url = {https://pubs.usgs.gov/publication/ofr6968},
  note = {Source identifier: ofr6968}
}