@misc{indiciaedd4aa5a35834,
  title = {The biology of the resident ducks of the Marismas Nacionales, Mexico, and adjacent areas, and recommendations for their management},
  author = {N.J. Scott},
  year = {1984},
  url = {https://pubs.usgs.gov/publication/70120848},
  note = {Source identifier: 70120848}
}