Author: Denburgh, John van & J.R.Slevin.
Title: The Garter-snakes of Western North America.
Description: San Francisco, 1918. 90 pp. Ills. Soft cover. (Proceedings of the Cal. Acad. of Science, 4th Serie, Vol. VIII,6).

Keywords: Reptiles Amphibians America Reptielen Amfibieën Amerika