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2. Steps to an Ecology of Mind: Collected Essays in Anthropology, Psychiatry, Evolution, and Epistemology;Bateson,1987
3. Understanding Utterances;Blakemore,1992
4. Lexicalization and Language Change;Brinton,2005
5. The Evolution of Grammar: Tense, Aspect, and Modality in the Languages of the World;Bybee,1994