@misc{indiciaec9d3cb39e884,
  title = {Biological survey of Texas: life zones, with characteristic species of mammals, birds, reptiles, and plants},
  author = {Vernon Bailey and C. Hart Merriam},
  year = {1905},
  url = {https://pubs.usgs.gov/publication/naf25},
  note = {Source identifier: naf25}
}