@misc{indiciae9a15c0c794e2,
  title = {Effects of diquat, an aquatic herbicide, on the development of mallard embryos},
  author = {C.J. Sewalk and G. L. Brewer and D. J. Hoffman},
  year = {2001},
  doi = {10.1080/00984100050201659},
  url = {https://pubs.usgs.gov/publication/5223969},
  note = {Source identifier: 5223969}
}