1941. Geographic variation in garter snakes of the species Thamnophis sirtalis in the Pacific Coast region of North America. Amer. Midland Nat., 26:570-592.
1951. The status of the gartersnake, Thamnophis sirtalis tetrataenia. Copeia, 1951:257-267.
Fouquette, M. J., and Lindsay, H. L., Jr.
1955. An ecological survey of reptiles in parts of northwestern Texas. Texas Jour. Sci., 7(4):402-421.
1942. The amphibians and reptiles of Nebraska. Nebraska Conserv. Bull. No. 24, pp. 1-146.