@misc{indiciaeafe39c66205a,
  title = {Underground water resources of Iowa},
  author = {William Harmon Norton and W.S. Hendrixson and Howard E. Simpson and O. E. Meinzer and and others},
  year = {1912},
  doi = {10.3133/wsp293},
  url = {https://pubs.usgs.gov/publication/wsp293},
  note = {Source identifier: wsp293}
}