@misc{indiciae3c61da742e48,
  title = {Discharge, nitrate load, and residence time of ground water in the Chesapeake Bay watershed},
  author = {Scott Phillips and Michael J. Focazio and L. Joseph Bachman},
  year = {1999},
  doi = {10.3133/fs15099},
  url = {https://pubs.usgs.gov/publication/fs15099},
  note = {Source identifier: fs15099}
}