@misc{indiciae8c4f17ab2bb0,
  title = {A summary of selected chemical-quality conditions in 66 California streams 1950-72},
  author = {George A. Irwin and Michael Lemons},
  year = {1975},
  doi = {10.3133/70184370},
  url = {https://pubs.usgs.gov/publication/70184370},
  note = {Source identifier: 70184370}
}