@misc{indiciae41dfd4498e34,
  title = {Habitat Suitability Index Models: Mallard (winter habitat, Lower Mississippi Valley)},
  author = {Arthur W. Allen},
  year = {1987},
  url = {https://pubs.usgs.gov/publication/fwsobs82\_10\_132},
  note = {Source identifier: fwsobs82\_10\_132}
}