@misc{indiciaefe682ffbb457,
  title = {Geohydrologic systems in Kansas; physical framework of the confining unit in the Western Interior Plains aquifer system},
  author = {C. V. Hansen and R. J. Wolf and J. M. Spinazola},
  year = {1992},
  doi = {10.3133/ha722e},
  url = {https://pubs.usgs.gov/publication/ha722E},
  note = {Source identifier: ha722E}
}