@misc{indiciae88a302b6cbec,
  title = {Aeroradioactivity map of the Charlotte 1 degree by 2 degrees Quadrangle, North Carolina and South Carolina},
  author = {D. L. Daniels and Isidore Zietz},
  year = {1982},
  doi = {10.3133/i1251d},
  url = {https://pubs.usgs.gov/publication/i1251D},
  note = {Source identifier: i1251D}
}