@misc{indiciae7ac17a883d59,
  title = {Geochemical maps of Samrah and vicinity, Kingdom of Saudi Arabia},
  author = {P. K. Theobald and Charles Emmet Thompson},
  year = {1971},
  doi = {10.3133/ofr71280},
  url = {https://pubs.usgs.gov/publication/ofr71280},
  note = {Source identifier: ofr71280}
}