@misc{indiciae897f36cfa1d7,
  title = {Chemical quality of water in streams of North Carolina},
  author = {Hugh B. Wilder and Larry J. Slack},
  year = {1971},
  doi = {10.3133/ha439},
  url = {https://pubs.usgs.gov/publication/ha439},
  note = {Source identifier: ha439}
}