@misc{indiciae190867b71fb1,
  title = {Toxicity of lead and proposed substitute shot to mallards.},
  author = {J. R. Longcore and R. Andrews and L. N. Locke and George E. Bagley and L. T. Young},
  year = {1974},
  url = {https://pubs.usgs.gov/publication/ssrw183},
  note = {Source identifier: ssrw183}
}