@misc{indiciae61f08d9927e7,
  title = {Tracing and dating young ground water},
  author = {Niel Plummer and Linda C. Friedman},
  year = {1999},
  doi = {10.3133/fs13499},
  url = {https://pubs.usgs.gov/publication/fs13499},
  note = {Source identifier: fs13499}
}