@misc{indiciae28fd540e0e52,
  title = {Geographic distribution: Crotalus viridis viridis},
  author = {H. M. Smith and G. A. Hammerson and D. Chiszar and Cindy Ramotnik},
  year = {1993},
  url = {https://pubs.usgs.gov/publication/70128551},
  note = {Source identifier: 70128551}
}