@misc{indiciaeb0603349606a,
  title = {An evaluation of blood plasma for monitoring DDE in birds of prey},
  author = {Charles J. Henny and D. L. Meeker},
  year = {1981},
  doi = {10.1016/0143-1471(81)90090-8},
  url = {https://pubs.usgs.gov/publication/5221682},
  note = {Source identifier: 5221682}
}