@misc{indiciae082b418db582,
  title = {Water quality in the Merced River above and below the El Portal sewage treatment plant near Yosemite National Park, California, 1975-77},
  author = {Ray J. Hoffman},
  year = {1979},
  doi = {10.3133/ofr79679},
  url = {https://pubs.usgs.gov/publication/ofr79679},
  note = {Source identifier: ofr79679}
}