@misc{indiciae3adcc1cf5d93,
  title = {Potentiometric surface and water-level difference maps of selected confined aquifers of Southern Maryland and Maryland's Eastern Shore, 1975-2011},
  author = {Stephen E. Curtin and David C. Andreasen and Andrew W. Staley},
  year = {2012},
  doi = {10.3133/sir20125165},
  url = {https://pubs.usgs.gov/publication/sir20125165},
  note = {Source identifier: sir20125165}
}