@misc{indiciae9688a5b27f64,
  title = {The potentiometric surface of the Aquia aquifer in southern Maryland, September 1985},
  author = {Frederick K. Mack and Judith C. Wheeler and Stephen E. Curtin and David C. Andreasen},
  year = {1987},
  doi = {10.3133/wri874029},
  url = {https://pubs.usgs.gov/publication/wri874029},
  note = {Source identifier: wri874029}
}