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Flashy fantastic rain forest frogs de: Patent, Dorothy Hinshaw (Text tipărit)

A frog's body de: Cole, Joanna (Text tipărit)

Frogs de: Ivy, Bill (Text tipărit)

Frogs and toads of the world de: Simon, Hilda (Text tipărit)

Frogs, toads, lizards, and salamanders de: Parker, Nancy Winslow; Wright, Joan Richards (Text tipărit)

Slippery babies : Young frogs, toads, and salamanders de: Johnston, Ginny; Cutchins, Judy (Text tipărit)