@misc{indiciaeac90abe5b19f,
  title = {Simulated ground-water flow and water quality of the Mississippi River alluvium near Burlington, Iowa, 1999},
  author = {Robert A. Boyd},
  year = {2001},
  doi = {10.3133/wri004274},
  url = {https://pubs.usgs.gov/publication/wri004274},
  note = {Source identifier: wri004274}
}