@misc{indiciae0a775ffcb8bb,
  title = {Potentiometric surface of the Ozark aquifer in northern Arkansas, 2004},
  author = {T. P. Schrader},
  year = {2005},
  doi = {10.3133/sir20055208},
  url = {https://pubs.usgs.gov/publication/sir20055208},
  note = {Source identifier: sir20055208}
}