@misc{indiciaea43a9a947c55,
  title = {Fluoride, Nitrate, and Dissolved-Solids Concentrations in Ground Waters of Washington},
  author = {W. E. Lum and Gary L. Turney},
  year = {1984},
  doi = {10.3133/wri82508},
  url = {https://pubs.usgs.gov/publication/wri82508},
  note = {Source identifier: wri82508}
}