Walker, Karen. “An Illustrated Guide to Trunk Vertebrae of Cottonmouth (Agkistrodon Piscivorus) and Diamondback Rattlesnake (Crotalus Adamanteus) in Florida”. Bulletin of the Florida Museum of Natural History, vol. 44, no. 1, July 2003, pp. 91-100, doi:10.58782/flmnh.sdil5954.