@misc{indiciae44532071ef35,
  title = {Geology of the Al Junaynah Quadrangle, sheet 20/42 D, Kingdom of Saudi Arabia},
  author = {Dwight Lyman Schmidt},
  year = {1981},
  doi = {10.3133/ofr81185},
  url = {https://pubs.usgs.gov/publication/ofr81185},
  note = {Source identifier: ofr81185}
}