@misc{indiciaea3a99a05f0dd,
  title = {Water quality of Corydon Reservoir before implementation of agricultural best-management practices in the basin, Wayne County, Iowa, September 1990 to September 1991},
  author = {S. J. Kalkhoff},
  year = {1993},
  doi = {10.3133/wri934099},
  url = {https://pubs.usgs.gov/publication/wri934099},
  note = {Source identifier: wri934099}
}