@misc{indiciaeca7db3897f78,
  title = {Sex determination of duck embryos: observations on syrinx development},
  author = {Robert E. Wilson and Sarah A. Sonsthagen and J. Christian Franson},
  year = {2013},
  doi = {10.3184/175815513x13739900273488},
  url = {https://pubs.usgs.gov/publication/70045512},
  note = {Source identifier: 70045512}
}