@misc{indiciae64f5bbeabc29,
  title = {Index map of 1:50,000-scale mosaics, WSA photography 1955-1957, Kingdom of Saudi Arabia},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1980},
  doi = {10.3133/ofr801305},
  url = {https://pubs.usgs.gov/publication/ofr801305},
  note = {Source identifier: ofr801305}
}