Wheeler, W. "Tongues i'll hang on every tree": Biosemitoics and the book of nature / Wendy Wheeler. The Cambridge companion to literature and the environment.(2014).

Wheeler, Wendy. ""Tongues I'll Hang on Every Tree": Biosemitoics and the Book of Nature / Wendy Wheeler." The Cambridge Companion to Literature and the Environment.(2014) .

Wheeler, Wendy. ""Tongues I'll Hang on Every Tree": Biosemitoics and the Book of Nature / Wendy Wheeler." The Cambridge Companion to Literature and the Environment.(2014), .