@misc{indiciaeade50f57aced,
  title = {Ground-water quality in the upper Santa Ana River basin, southern California},
  author = {Lawrence A. Eccles},
  year = {1979},
  doi = {10.3133/wri79113},
  url = {https://pubs.usgs.gov/publication/wri79113},
  note = {Source identifier: wri79113}
}