@misc{indiciaebcd06ad12b8d,
  title = {Map showing radon potential of rocks and soils in Fairfax County, Virginia},
  author = {James K. Otton and R. Randall Schumann and Douglass E. Owen and Nelson Thurman and Joseph S. Duval},
  year = {1988},
  doi = {10.3133/mf2047},
  url = {https://pubs.usgs.gov/publication/mf2047},
  note = {Source identifier: mf2047}
}