@misc{indiciaed7da97dfcba5,
  title = {Digital map of water-level changes in the High Plains Aquifer in parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1980 to 1995},
  author = {Brian C. Fischer and Virginia L. McGuire},
  year = {1999},
  doi = {10.3133/ofr99197},
  url = {https://pubs.usgs.gov/publication/ofr99197},
  note = {Source identifier: ofr99197}
}