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Language variation and changeDavid Lightfoot. "Language variation and change." The MIT encyclopedia of the cognitive sciences. Ed. F. Keil & R. Wilson. Cambridge, MA: MIT Press, 1999. |
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Language variation and changeDavid Lightfoot. "Language variation and change." The MIT encyclopedia of the cognitive sciences. Ed. F. Keil & R. Wilson. Cambridge, MA: MIT Press, 1999. |
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