@misc{indiciae073004333b69,
  title = {Estimation of wildlife population ratios incorporating survey design and visibility bias},
  author = {Michael D. Samuel and R. Kirk Steinhorst and Edward O. Garton and James W. Unsworth},
  year = {1992},
  doi = {10.2307/3809465},
  url = {https://pubs.usgs.gov/publication/1003805},
  note = {Source identifier: 1003805}
}