@misc{indiciae37e21629260a,
  title = {Effects of chronic ingestion of South Louisiana crude oil on mallard ducklings},
  author = {Robert C. Szaro and M. P. Dieter and G. H. Heinz and J. F. Ferrell},
  year = {1978},
  doi = {10.1016/0013-9351(78)90046-4},
  url = {https://pubs.usgs.gov/publication/5221419},
  note = {Source identifier: 5221419}
}