@misc{indiciae83825d20227c,
  title = {Water-level changes in the High Plains Aquifer: Predevelopment to 1990},
  author = {J. T. Dugan and D. E. Schild},
  year = {1992},
  doi = {10.3133/wri914165},
  url = {https://pubs.usgs.gov/publication/wri914165},
  note = {Source identifier: wri914165}
}