@misc{indiciaee34d19d3e861,
  title = {Comparison of water quality in four small watersheds containing animal feeding operations in Iowa},
  author = {Kent Becher and Kimberlee K.B. Akers},
  year = {1999},
  url = {https://pubs.usgs.gov/publication/70169934},
  note = {Source identifier: 70169934}
}