@misc{indiciaea053931b6e11,
  title = {Ground-water levels in observation wells in Oklahoma, 1971-74},
  author = {Robert L. Goemaat},
  year = {1976},
  doi = {10.3133/ofr76664},
  url = {https://pubs.usgs.gov/publication/ofr76664},
  note = {Source identifier: ofr76664}
}