@misc{indiciae86b102ca0e0b,
  title = {Chemical quality of ground water in the Culpeper Basin, Virginia and Maryland},
  author = {Alex Posner and Chester Zenone},
  year = {1983},
  doi = {10.3133/i1313d},
  url = {https://pubs.usgs.gov/publication/i1313D},
  note = {Source identifier: i1313D}
}