@misc{indiciae1df81d5891a2,
  title = {Organochlorine residues and eggshell thinning in anhingas and waders},
  author = {Harry M. Ohlendorf and Erwin E. Klaas and T. Earl Kaiser},
  year = {1978},
  doi = {10.2307/1520919},
  url = {https://pubs.usgs.gov/publication/5221425},
  note = {Source identifier: 5221425}
}