@misc{indiciaefcc61b1b9ea6,
  title = {Reconnaissance of ground-water resources in the Mississippian Plateau region, Kentucky},
  author = {R. F. Brown and T. W. Lambert},
  year = {1963},
  doi = {10.3133/wsp1603},
  url = {https://pubs.usgs.gov/publication/wsp1603},
  note = {Source identifier: wsp1603}
}