@misc{indiciae8552dbc96409,
  title = {Geology of the Arabian Peninsula; shield area of western Saudi Arabia},
  author = {Glen F. Brown and Dwight L. Schmidt and A. Curtis Huffman},
  year = {1989},
  doi = {10.3133/pp560a},
  url = {https://pubs.usgs.gov/publication/pp560A},
  note = {Source identifier: pp560A}
}