@misc{indiciaefafc34076ef4,
  title = {Statistical summaries of selected chemical constituents in Kansas ground-water supplies, 1976-81},
  author = {T.B. Spruill},
  year = {1983},
  doi = {10.3133/ofr83263},
  url = {https://pubs.usgs.gov/publication/ofr83263},
  note = {Source identifier: ofr83263}
}