@misc{indiciae6e5f24f256a0,
  title = {Potentiometric Surface of the Lower Patapsco Aquifer in Southern Maryland, September 2009},
  author = {Stephen E. Curtin and David C. Andreasin and Andrew W. Staley},
  year = {2010},
  doi = {10.3133/ofr20101207},
  url = {https://pubs.usgs.gov/publication/ofr20101207},
  note = {Source identifier: ofr20101207}
}