@misc{indiciaeca5107493f68,
  title = {Water-level changes in the High Plains aquifer underlying parts of South Dakota, Wyoming, Nebraska, Colorado, Kansas, New Mexico, Oklahoma, and Texas: Predevelopment through nonirrigation season 1987-88},
  author = {W. M. Kastner and D. E. Schild and D. S. Spahr},
  year = {1989},
  doi = {10.3133/wri894073},
  url = {https://pubs.usgs.gov/publication/wri894073},
  note = {Source identifier: wri894073}
}