Behler, John L. & F. Wayne King, National Audubon Society Field Guide to North American Reptiles and Amphibians (Alfred A. Knopf, New York, 743 pp, 1996
Columbus and Franklin County Metropolitan Park District, "Reptiles of Ohio", IN Nature Interpretation Handbook (Columbus [Ohio] and Franklin County Metropolitan Park District, Columbus, pp. An-51 - An-56, n.d.)
Conant, Roger & Joseph T. Collins, A Field Guide to Reptiles and Amphibians: Eastern and Central North America (Houghton Mifflin, Boston, xx + 616 pp, Third Edition, Expanded, 1991)
Harding, James H., Amphibians and Reptiles of the Great Lakes Region (University of Michigan Press, Ann Arbor, xvi + 378 pp., 1997)
Ohio Department of Natural Resources (ODNR), Ohio's Reptiles (ODNR, Columbus, [ii] + 26 pp., n.d.)
