@misc{indiciae0cb1e26d1178,
  title = {Geology and ground-water resources of Fillmore County, Nebraska, with a section on chemical quality of the water},
  author = {Charles Franklin Keech and V. H. Dreeszen and L. R. Petri},
  year = {1968},
  doi = {10.3133/wsp1839l},
  url = {https://pubs.usgs.gov/publication/wsp1839L},
  note = {Source identifier: wsp1839L}
}