@misc{indiciaefd3c547f4a3b,
  title = {Water-quality assessment of the Middle Fork Anderson River watershed, Crawford and Perry counties, Indiana},
  author = {Mark A. Ayers},
  year = {1978},
  doi = {10.3133/ofr7871},
  url = {https://pubs.usgs.gov/publication/ofr7871},
  note = {Source identifier: ofr7871}
}