@misc{indiciaefe65a9a10324,
  title = {Ground water in the Piedmont upland of central Maryland},
  author = {Claire A. Richardson},
  year = {1982},
  doi = {10.3133/wsp2077},
  url = {https://pubs.usgs.gov/publication/wsp2077},
  note = {Source identifier: wsp2077}
}