@misc{indiciae62b43b0c16a5,
  title = {Map showing dissolved-solids concentration and pH of water in selected streams in Kentucky River Area Development District, Kentucky},
  author = {R. W. Davis},
  year = {1978},
  doi = {10.3133/mf865g},
  url = {https://pubs.usgs.gov/publication/mf865G},
  note = {Source identifier: mf865G}
}