@misc{indiciae5e4a8a59f3f7,
  title = {Manning's roughness coefficient for Illinois streams},
  author = {David T. Soong and Crystal D. Prater and Teresa M. Halfar and Loren A. Wobig},
  year = {2012},
  doi = {10.3133/ds668},
  url = {https://pubs.usgs.gov/publication/ds668},
  note = {Source identifier: ds668}
}