@misc{indiciaea774c4d6c885,
  title = {Historical water-quality data for the High Plains Regional Ground-Water Study Area in Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming, 1930-98},
  author = {David W. Litke},
  year = {2001},
  doi = {10.3133/wri004254},
  url = {https://pubs.usgs.gov/publication/wri004254},
  note = {Source identifier: wri004254}
}