@misc{indiciae862ebb04de82,
  title = {Water levels in observation wells in Nebraska during 1956},
  author = {C.F. Keech},
  year = {1957},
  doi = {10.3133/ofr5761},
  url = {https://pubs.usgs.gov/publication/ofr5761},
  note = {Source identifier: ofr5761}
}