Corkran,
Charlotte C., and Chris Thoms. 1996.
Amphibians of Oregon, Washington and
British Columbia: A Field Identification Guide
Renton, WA: Lone Pine Publishing. 176 pp.

Corkran, Charlotte C., and Chris Thoms. 2006.
Amphibians of Oregon, Washington and British Columbia: A Field
Identification Guide
2d
ed. Renton, WA: Lone Pine Publishing. 176 pp.

Jones,
Lawrence L.C., William P. Leonard, and Deanna H. Olson, eds. 2005.
Amphibians of the Pacific Northwest
Seattle, WA: Seattle Audubon Society. 304 pp.

Nussbaum, Ronald A., Edmund D. Brodie, Jr., and Robert M. Storm. 1983.
Amphibians and Reptiles of the Pacific Northwest
Moscow, ID: University of Idaho Press. 332 pp.

St. John, Alan. 2002.
Reptiles of the Northwest: California to Alaska, Rockies to the
Coast
Renton,
WA: Lone Pine Publishing. 272 pp.

Storm, Robert M., and William P. Leonard, eds. 1995.
Reptiles of Washington and Oregon
Seattle, WA: Seattle Audubon Society. 174 pp.
