@misc{indiciaeccaccd1d7801,
  title = {Comparative Dietary Toxicities of Pesticides to Birds},
  author = {R.G. Heath and J. W. Spann and E. F. Hill and J.F. Kreitzer},
  year = {1972},
  url = {https://pubs.usgs.gov/publication/5230135},
  note = {Source identifier: 5230135}
}