@misc{indiciae3de164a5a2ef,
  title = {Cholinesterase activity in black-crowned night-herons exposed to fenthion-treated water},
  author = {Gregory J. Smith and James W. Spann and Elwood F. Hill},
  year = {1986},
  doi = {10.1007/bf01055252},
  url = {https://pubs.usgs.gov/publication/5222096},
  note = {Source identifier: 5222096}
}