@misc{indiciae14f5594432c0,
  title = {Potentiometric surface of the Magothy Aquifer in southern Maryland: September 1997},
  author = {Stephen E. Curtin and David C. Andreasen and Frederick K. Mack},
  year = {1999},
  doi = {10.3133/ofr9983},
  url = {https://pubs.usgs.gov/publication/ofr9983},
  note = {Source identifier: ofr9983}
}