@misc{indiciae2194116bd7e8,
  title = {Annual report of the USGS Mission, Kingdom of Saudi Arabia, for the fiscal year 1991},
  author = {U.S. Geological Survey Saudi Arabia Mission},
  year = {1992},
  url = {https://pubs.usgs.gov/publication/70157392},
  note = {Source identifier: 70157392}
}