@misc{indiciae3cb01c6d24d3,
  title = {Field guide for collecting and processing stream-water samples for the National Water-Quality Assessment Program},
  author = {Larry R. Shelton},
  year = {1994},
  doi = {10.3133/ofr94455},
  url = {https://pubs.usgs.gov/publication/ofr94455},
  note = {Source identifier: ofr94455}
}