@misc{indiciae1bbf2004bccb,
  title = {Vegetation and terrain mapping of Lake Mead National Recreation Area using LANDSAT digital data},
  author = {William J. Todd and Dale G. Gehring},
  year = {1980},
  url = {https://pubs.usgs.gov/publication/70236564},
  note = {Source identifier: 70236564}
}