@misc{indiciae37331882d25c,
  title = {Landsat image map of the Abha Quadrangle, sheet 18F, Kingdom of Saudi Arabia},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey and Saudi Arabia. Mudīrīyah al-ʻĀmmah lil-Tharwah al-Maʻdinīyah},
  year = {1981},
  doi = {10.3133/ofr81592},
  url = {https://pubs.usgs.gov/publication/ofr81592},
  note = {Source identifier: ofr81592}
}