@misc{indiciaee46f4bcf1d90,
  title = {Estimating rangeland cover proportions with large-scale color-infrared aerial photographs},
  author = {Calvin J. Van Zee and Kris Bonner},
  year = {1981},
  url = {https://pubs.usgs.gov/publication/70236916},
  note = {Source identifier: 70236916}
}