@misc{indiciaed178654cfd22,
  title = {Geology of the Arabian Peninsula; Eastern Aden Protectorate and part of Dhufar},
  author = {Z.R. Beydoun},
  year = {1966},
  doi = {10.3133/pp560h},
  url = {https://pubs.usgs.gov/publication/pp560H},
  note = {Source identifier: pp560H}
}