@misc{indiciae021557300785,
  title = {Map showing the potentiometric surface of the Magothy aquifer in southern Maryland, September 1983},
  author = {Frederick K. Mack and Judith C. Wheeler and Stephen E. Curtin},
  year = {1985},
  doi = {10.3133/wri854000},
  url = {https://pubs.usgs.gov/publication/wri854000},
  note = {Source identifier: wri854000}
}