@misc{indiciae75ac21c7bf5a,
  title = {Geology and ground-water resources of southern Ellis County and parts of Trego and Rush Counties, Kansas},
  author = {A.R. Leonard and D.W. Berry},
  year = {1961},
  url = {https://pubs.usgs.gov/publication/70176019},
  note = {Source identifier: 70176019}
}