@misc{indiciae66cc6ebb16fb,
  title = {Pesticides in the nation's rivers, 1975-1980, and implications for future monitoring},
  author = {Robert J. Gilliom and Richard B. Alexander and Richard A. Smith},
  year = {1985},
  doi = {10.3133/wsp2271},
  url = {https://pubs.usgs.gov/publication/wsp2271},
  note = {Source identifier: wsp2271}
}