@misc{indiciaec64c63ed09cf,
  title = {A summary of water-resources activities of the U.S. Geological Survey in Iowa; fiscal year 1990},
  year = {1990},
  doi = {10.3133/ofr90583},
  url = {https://pubs.usgs.gov/publication/ofr90583},
  note = {Source identifier: ofr90583}
}