@misc{indiciaebf76c8818233,
  title = {Breeding canvasbacks: a test of a habitat model},
  author = {Douglas H. Johnson and M.C. Hammond and T. L. McDonald and C.L. Nustad},
  year = {1989},
  url = {https://pubs.usgs.gov/publication/1001536},
  note = {Source identifier: 1001536}
}