@misc{indiciae6b9c4d964ae5,
  title = {Potentiometric surface of the Mississippian aquifer in parts of Trigg, Lyon, Caldwell, and Christian Counties, Mississippian Plateau region, Kentucky},
  author = {Raymond O. Plebuch},
  year = {1978},
  doi = {10.3133/wri7825},
  url = {https://pubs.usgs.gov/publication/wri7825},
  note = {Source identifier: wri7825}
}