@misc{indiciaef19aaea21b64,
  title = {Water availability and vulnerability of ground water to contamination in northwestern Hardin County, Kentucky},
  author = {D. S. Mull and R.J. Faust and G. R. Martin},
  year = {1990},
  doi = {10.3133/wri904133},
  url = {https://pubs.usgs.gov/publication/wri904133},
  note = {Source identifier: wri904133}
}