@misc{indiciaeb91678d8aede,
  title = {Approximate location of the 10,000-milligram-per-liter dissolved-solids boundary in the Silurian and Devonian carbonate-rock aquifer, southwestern and northern Indiana},
  author = {Douglas J. Schnoebelen and E. F. Bugliosi and R. H. Hanover and J.A. Rupp},
  year = {1998},
  doi = {10.3133/wri954071},
  url = {https://pubs.usgs.gov/publication/wri954071},
  note = {Source identifier: wri954071}
}