@misc{indiciae1bd803349ee3,
  title = {Regional aquifers in Kansas, Nebraska, and parts of Arkansas, Colorado, Missouri, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming: Geohydrologic framework},
  author = {Donald G. Jorgensen and John O. Helgesen and Jeffrey L. Imes},
  year = {1993},
  doi = {10.3133/pp1414b},
  url = {https://pubs.usgs.gov/publication/pp1414B},
  note = {Source identifier: pp1414B}
}