Werler, J. E. and McCallion, J.
1951. Notes on a collection of reptiles and amphibians from Princess Anne County, Virginia. Amer. Midl. Nat., 45(1):245-252.
Woodbury, A. M.
1931. A descriptive catalog of the reptiles of Utah. Bull. Univ. Utah, 21 (no. 5):x + 129 pp.
Woods, G. T.
1944. Black snake attacks a boy. Copeia, 1944(4):257.
Wright, A. H. and Bishop, S. C.
1915. A biological reconnaissance of the Okefinokee Swamp in Georgia. II. Snakes. Proc. Acad. Nat. Sci. Philadelphia, 67:139-192.
Wright, A. H. and Wright, A. A.
1957. Handbook of snakes of the United States and Canada. Comstock Publ. Associates, Cornell Univ. Press, vol. I, xviii + 564 pp.