@misc{indiciaeefec987dd57a,
  title = {Potentiometric Surface of the Ozark Aquifer in Northern Arkansas, 2007},
  author = {Aaron L. Pugh},
  year = {2008},
  doi = {10.3133/sir20085137},
  url = {https://pubs.usgs.gov/publication/sir20085137},
  note = {Source identifier: sir20085137}
}