@misc{indiciaeffa310f250c3,
  title = {Interpolating water-table altitudes in west-central Kansas using kriging techniques},
  author = {L. E. Dunlap and Joseph M. Spinazola},
  year = {1984},
  doi = {10.3133/wsp2238},
  url = {https://pubs.usgs.gov/publication/wsp2238},
  note = {Source identifier: wsp2238}
}