@misc{indiciaead83900cc5ce,
  title = {Sampling and analysis for radon-222 dissolved in ground water and surface water},
  author = {L. DeWayne Cecil and T.F. Gesell},
  year = {1992},
  doi = {10.1007/bf00396521},
  url = {https://pubs.usgs.gov/publication/70017190},
  note = {Source identifier: 70017190}
}