@misc{indiciaeceaf80fe9a9a,
  title = {Maps showing altitude of the potentiometric surface and changes in water level of the Sparta sand and Memphis sand aquifers in Eastern Arkansas, spring 1983},
  author = {Joe Edds and Daniel J. Fitzpatrick},
  year = {1984},
  doi = {10.3133/wri844265},
  url = {https://pubs.usgs.gov/publication/wri844265},
  note = {Source identifier: wri844265}
}