Gloyd, H. K. 1. (1940). The rattlesnakes, genera sistrurus and crotalus: A study in zoogeography and evolution. Chicago: The Chicago Academy of Sciences.
Chicago Style CitationGloyd, Howard Kay 1902-1978. The Rattlesnakes, Genera Sistrurus and Crotalus: A Study in Zoogeography and Evolution. Chicago: The Chicago Academy of Sciences, 1940.
MLA CitationGloyd, Howard Kay 1902-1978. The Rattlesnakes, Genera Sistrurus and Crotalus: A Study in Zoogeography and Evolution. Chicago: The Chicago Academy of Sciences, 1940.
Warning: These citations may not always be 100% accurate.