@misc{indiciaec55b00693a25,
  title = {Potentiometric surface of the lower Patapsco aquifer in southern Maryland, September 1999},
  author = {Stephen E. Curtin and D. C. Andreasen and J. C. Wheeler},
  year = {2001},
  doi = {10.3133/ofr01210},
  url = {https://pubs.usgs.gov/publication/ofr01210},
  note = {Source identifier: ofr01210}
}