@misc{indiciae3e09ebaad8f5,
  title = {Potentiometric surface of the Magothy aquifer in southern Maryland, September 1999},
  author = {Stephen E. Curtin and David C. Andreasen and Judith C. Wheeler},
  year = {2001},
  doi = {10.3133/ofr01207},
  url = {https://pubs.usgs.gov/publication/ofr01207},
  note = {Source identifier: ofr01207}
}