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Amazon.com: Concept, Image, and Symbol: The Cognitive Basis of Grammar (Cognitive Linguistics Research [CLR], 1): 9783110172805: Langacker, Ronald W.: ,

Amazon.com: Cognitive Grammar: A Basic Introduction: 9780195331967: Langacker, Ronald W.: Books,

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Concept, Image and Symbol: The Cognitive Basis of Grammar: Langacker, Roanld W.: 9780899258201: Amazon.com: Books,

Origins of Language: Constraints on hypotheses | Sverker Johansson