@misc{indiciaeb67dfe7f6aab,
  title = {Ground-water levels in the alluvial aquifer in eastern Arkansas, 1987},
  author = {Paul W. Westerfield},
  year = {1989},
  doi = {10.3133/ofr8964},
  url = {https://pubs.usgs.gov/publication/ofr8964},
  note = {Source identifier: ofr8964}
}