1. The rattlesnakes, genera Sistrurus and Crotalus;Gloyd;Chicago Acad. Sci., Spec. Publ. No.,1940
2. Some properties of North American pit viper venoms and their correlation with phylogeny;Minton,1956
3. A Comparative Study of Rattlesnake Venom Lethalities by Paramecium bioassay;Tullar,1966
4. Ultracentrifugal and zone electrophoresis studies on some Crotalidae venoms;Gonçalves;Archs Biochem. Biophys.,1956
5. An electrophoretic survey of rattlesnake venoms;Leviton,1962