@misc{indiciae20949879ccbb,
  title = {Natural gamma aeroradioactivity of the Savannah River Plant area, South Carolina and Georgia},
  author = {Robert George Schmidt},
  year = {1961},
  doi = {10.3133/gp306},
  url = {https://pubs.usgs.gov/publication/gp306},
  note = {Source identifier: gp306}
}