@misc{indiciae28df5500fa32,
  title = {Water resources data for Iowa, water year 1971},
  author = {U.S. Geological Survey},
  year = {1972},
  doi = {10.3133/70168638},
  url = {https://pubs.usgs.gov/publication/70168638},
  note = {Source identifier: 70168638}
}