@misc{indiciaee6d53c9a1e50,
  title = {Preliminary estimates of residence times and apparent ages of ground water in the Chesapeake Bay watershed, and water-quality data from a survey of springs},
  author = {Michael J. Focazio and Niel Plummer and John K. Bohlke and Eurybiades Busenberg and L. Joseph Bachman and David S. Powars},
  year = {1998},
  doi = {10.3133/wri974225},
  url = {https://pubs.usgs.gov/publication/wri974225},
  note = {Source identifier: wri974225}
}