@misc{indiciae57840895e915,
  title = {Geohydrologic systems in Kansas — Physical framework of the Great Plains aquifer system},
  author = {Joseph M. Spinazola and R. J. Wolf and Harold E. McGovern},
  year = {1992},
  doi = {10.3133/ha722b},
  url = {https://pubs.usgs.gov/publication/ha722B},
  note = {Source identifier: ha722B}
}