@misc{indiciae7b27102ca211,
  title = {Surface water records of Iowa},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1961},
  doi = {10.3133/266},
  url = {https://pubs.usgs.gov/publication/266},
  note = {Source identifier: 266}
}