@misc{indiciae2eb64dbabe9a,
  title = {Water-level and saturated-thickness changes, predevelopment to 1980, in the High Plains aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming},
  author = {Richard R. Luckey and Edwin D. Gutentag and John B. Weeks},
  year = {1981},
  doi = {10.3133/ha652},
  url = {https://pubs.usgs.gov/publication/ha652},
  note = {Source identifier: ha652}
}