@misc{indiciae309a5e97b095,
  title = {Evaluation of the Wadi Mandahah ancient mine, Kingdom of Saudi Arabia, with a section on a geophysical survey},
  author = {Mustafa M. Mawad and Habib M. Merghelani},
  year = {1980},
  doi = {10.3133/ofr801262},
  url = {https://pubs.usgs.gov/publication/ofr801262},
  note = {Source identifier: ofr801262}
}