@misc{indiciae692b206622b4,
  title = {U.S. Geological Survey standard reference water samples for pesticides},
  author = {Marvin J. Fishman and Linda C. Friedman and Delora K. Boyle},
  year = {1982},
  doi = {10.3133/wri8228},
  url = {https://pubs.usgs.gov/publication/wri8228},
  note = {Source identifier: wri8228}
}