@misc{indiciae9787193a5ef9,
  title = {The Difference Between the Potentiometric Surfaces of the Aquia Aquifer, September 1982 and September 2001 in Southern Maryland},
  author = {Stephen E. Curtin and David C. Andreasen and Judith C. Wheeler},
  year = {2002},
  doi = {10.3133/ofr02443},
  url = {https://pubs.usgs.gov/publication/ofr02443},
  note = {Source identifier: ofr02443}
}