DeGraaf, Richard M., Deborah D. Rudis, and Abigail Rorer. 1983.
Amphibians and Reptiles of New England: Habitats and Natural History
Amherst, MA: University of Massachusetts Press. 85 pp.




Hunter, Malcolm L., John Albright, and Jane Arbuckle, eds. 1992.
The Amphibians and Reptiles of Maine
Bulletin 838. Orono, ME: Maine Agriculture Experiment Station. 188 pp.


Hunter, Malcolm L., Aram J. K. Calhoun, and Mark McCollough, eds. 1999.
Maine Amphibians and Reptiles
Orono, ME: University of Maine Press. 272 pp. [includes CD of frog and toad calls]