@misc{indiciaee220aef9e0db,
  title = {Mass balance approach to selenium cycling through the San Joaquin Valley, sources to river to bay},
  author = {Theresa S. Presser and David Z. Piper},
  year = {1997},
  url = {https://pubs.usgs.gov/publication/70198694},
  note = {Source identifier: 70198694}
}