@misc{indiciaed8c21c9cadbc,
  title = {Sources and chronology of nitrate contamination in spring waters, Suwannee River basin, Florida},
  author = {Brian G. Katz and H.D. Hornsby and J. K. Bohlke and M.F. Mokray},
  year = {1999},
  doi = {10.3133/wri994252},
  url = {https://pubs.usgs.gov/publication/wri994252},
  note = {Source identifier: wri994252}
}