@misc{indiciaeab6fb4fca5bf,
  title = {Lead exposure in American black ducks after implementation of non-toxic shot},
  author = {M.D. Samuel and E. Frank Bowers},
  year = {2000},
  doi = {10.2307/3803203},
  url = {https://pubs.usgs.gov/publication/1003869},
  note = {Source identifier: 1003869}
}