@misc{indiciaef92e8baf3ade,
  title = {Availability of ground water in Caldwell, Christian, Crittenden, Livingston, Lyon, Todd, and Trigg Counties, Kentucky},
  author = {T. William Lambert and Richmond F. Brown},
  year = {1963},
  doi = {10.3133/ha34},
  url = {https://pubs.usgs.gov/publication/ha34},
  note = {Source identifier: ha34}
}