@misc{indiciaec79875fa5d32,
  title = {An alternative regionalization scheme for defining nutrient criteria for rivers and streams},
  author = {Dale M. Robertson and David A. Saad and Ann M. Wieben},
  year = {2001},
  doi = {10.3133/wri014073},
  url = {https://pubs.usgs.gov/publication/wri014073},
  note = {Source identifier: wri014073}
}