@misc{indiciaebeea1a405bf4,
  title = {Organochlorine residues and mortality of herons},
  author = {Harry M. Ohlendorf and Douglas M. Swineford and Louis N. Locke},
  year = {1981},
  url = {https://pubs.usgs.gov/publication/5221661},
  note = {Source identifier: 5221661}
}