@misc{indiciae419d553ea24c,
  title = {Aeroradioactivity map of Charleston and vicinity, South Carolina},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1976},
  doi = {10.3133/ofr7630},
  url = {https://pubs.usgs.gov/publication/ofr7630},
  note = {Source identifier: ofr7630}
}