@misc{indiciae16b9911bcd79,
  title = {Potentiometric map of the Sparta aquifer system in Mississippi, fall, 1980},
  author = {B. E. Wasson},
  year = {1980},
  doi = {10.3133/ofr811051},
  url = {https://pubs.usgs.gov/publication/ofr811051},
  note = {Source identifier: ofr811051}
}