@misc{indiciae9280c876851e,
  title = {Mallard egg quality: Enhancement by low levels of petroleum and chlorinated hydrocarbons},
  author = {L.D. Vangilder and T.J. Peterle},
  year = {1983},
  doi = {10.1007/bf01610092},
  url = {https://pubs.usgs.gov/publication/5221808},
  note = {Source identifier: 5221808}
}