@misc{indiciae906a59295023,
  title = {Geohydrologic reconnaissance of the Crofton Unit, northeastern Nebraska},
  author = {S.J. Kent and R. A. Engberg and M. J. Ellis},
  year = {1981},
  doi = {10.3133/wri8158},
  url = {https://pubs.usgs.gov/publication/wri8158},
  note = {Source identifier: wri8158}
}