@misc{indiciae64f023b9957b,
  title = {Long-term persistence of dieldrin, DDT, and heptachlor epoxide in earthworms},
  author = {W. N. Beyer and A. J. Krynitsky},
  year = {1989},
  url = {https://pubs.usgs.gov/publication/5222276},
  note = {Source identifier: 5222276}
}