@misc{indiciae1e20711cd4ba,
  title = {Embryotoxic and teratogenic effects of crude oil on mallard embryos on day one of development},
  author = {D. J. Hoffman},
  year = {1979},
  doi = {10.1007/bf02026999},
  url = {https://pubs.usgs.gov/publication/5221469},
  note = {Source identifier: 5221469}
}