@misc{indiciae76cfe60c1213,
  title = {Annual report of the USGS Mission, Kingdom of Saudi Arabia, for the first year of the sixth extension of the USGS-MPMR work agreement : fiscal year 1401/02, 1 Rajab 1401-30 Jumad Thani 1402 (5 May 1981-23 April 1982)},
  author = {U.S. Geological Survey Saudi Arabia Mission and Saudi Arabia. Deputy Ministry for Mineral Resources},
  year = {1982},
  url = {https://pubs.usgs.gov/publication/70157375},
  note = {Source identifier: 70157375}
}