@misc{indiciaeec37e8d5058c,
  title = {Altitude of the potentiometric surface and changes in water levels in the Sparta-Memphis aquifer in eastern and southern Arkansas, spring 1986},
  author = {Joe Edds and Daniel J. Fitzpatrick},
  year = {1989},
  doi = {10.3133/wri884042},
  url = {https://pubs.usgs.gov/publication/wri884042},
  note = {Source identifier: wri884042}
}