Lakoff, G. (1993) ‘The Contemporary Theory of Metaphor’, in A. Ortony (ed.) Metaphor and Thought, 2nd edn, pp.202-251. Cambridge: Cambridge University Press.
2.
Langacker, R.W. (1991) Foundations of Cognitive Grammar (Volume 2). Descriptive Application. Stanford, CA: Stanford University Press.
3.
Sweetser, E. (1990) From Etymology to Pragmatics: Metaphorical and Cultural Aspects of Semantic Structure. Cambridge: Cambridge University Press.
4.
Taylor, J.R. (1995) Linguistic Categorization. Prototypes in Linguistic Theory, 2nd edn.Oxford: Clarendon Press.