@misc{indiciae44de0070d102,
  title = {Potentiometric surface of the Ozark aquifer in northern Arkansas, 2001},
  author = {Tony P. Schrader},
  year = {2001},
  doi = {10.3133/wri014233},
  url = {https://pubs.usgs.gov/publication/wri014233},
  note = {Source identifier: wri014233}
}