@misc{indiciaeefc97612a1cc,
  title = {Potentiometric surface of the Aquia aquifer in southern Maryland, September 2000},
  author = {Stephen E. Curtin and David C. Andreasen and Judith C. Wheeler},
  year = {2002},
  doi = {10.3133/ofr02244},
  url = {https://pubs.usgs.gov/publication/ofr02244},
  note = {Source identifier: ofr02244}
}