@misc{indiciae701285fea528,
  title = {Potentiometric Surface of the Aquia Aquifer in southern Maryland, September 1995},
  author = {Stephen E. Curtin and David C. Andreasen and Frederick K. Mack},
  year = {1997},
  doi = {10.3133/ofr96620},
  url = {https://pubs.usgs.gov/publication/ofr96620},
  note = {Source identifier: ofr96620}
}