@misc{indiciae2c597a7940ed,
  title = {Radioactive anomaly and mineralogy of the lower part of the Tabuk Formation, Al Qassim area, Kingdom of Saudi Arabia},
  author = {John J. Matzko and V. J. Flanigan and Mustafa Mawad and Ziad Al Kollak and M.I. Naqvi and Abdul Malik Helaby},
  year = {1978},
  doi = {10.3133/ofr78520},
  url = {https://pubs.usgs.gov/publication/ofr78520},
  note = {Source identifier: ofr78520}
}