@misc{indiciae151d510aa5e7,
  title = {Management systems evaluation area; Iowa, Walnut Creek watershed},
  author = {P. J. Soenksen and J.L. Hatfield and J. L. Baker},
  year = {1992},
  doi = {10.3133/ofr92167},
  url = {https://pubs.usgs.gov/publication/ofr92167},
  note = {Source identifier: ofr92167}
}