@misc{indiciae1ef5f3513596,
  title = {Organochlorine pesticide residues in bed sediments of the San Joaquin River and its tributary streams, California},
  author = {R. J. Gilliom and D.G. Clifton},
  year = {1987},
  doi = {10.3133/ofr87531},
  url = {https://pubs.usgs.gov/publication/ofr87531},
  note = {Source identifier: ofr87531}
}