found: Duellman, W.E. Amphibian species of the world : additions and corrections, 1993:p. 83 (Hyla regilla. Change to: Pseudacris regilla)
found: Stebbins, R.C. Amphibians and reptiles of western N. Am., c1954:p. 121 (Pacific tree-frog, Hyla regilla)
found: Stebbins, R.C. A field guide to western reptiles and amphibians, 1966:p. 68 (Pacific treefrog, Hyla regilla)
found: Obst, F.J. The completely illustrated atlas of reptiles and amphibians ... c1988:p. 444 (Hyla regilla, Pacific treefrog)
found: Schmidt, K.P. A check list of N. Am. amphibians and reptiles, 1953:p. 72 (Hyla regilla, Pacific tree frog)
found: Web. 3(Pacific tree toad)
found: Green, D.M. The amphibians of British Columbia, 1984:p. 71 (Hyla regilla, Pacific treefrog (Pacific tree-toad))
found: Center for North American Herpetology web site, Dec. 2, 2004(Pacific chorus frog; Pseudacris regilla)
found: Norris, T. Pacific chorus frog, Pseudacris regilla, 2004.
found: Fivecreeks.org web site, Jan. 18, 2005(Pacific chorus frog or Pacific tree frog)
found: ITIS North America search, Feb. 15, 2005(Pseudacris regilla, vernacular names: Pacific chorus frog, Pacific treefrog)
found: USGS Northern Prairie Wildlife Research Center web site, Feb. 15, 2005(Pacific treefrog, Pseudacris regilla)
