@misc{indiciae329746c59643,
  title = {Airborne gamma-radiation survey of the Jabel Ishmas Quadrangle, Kingdom of Saudi Arabia},
  author = {Vincent J. Flanigan},
  year = {1975},
  doi = {10.3133/ofr75190},
  url = {https://pubs.usgs.gov/publication/ofr75190},
  note = {Source identifier: ofr75190}
}