@misc{indiciaeb8acfa12f363,
  title = {Ground-water levels in Wyoming, 1976},
  author = {Wilbur C. Ballance and Pamela B. Freudenthal},
  year = {1977},
  doi = {10.3133/ofr77686},
  url = {https://pubs.usgs.gov/publication/ofr77686},
  note = {Source identifier: ofr77686}
}