MacNeilage, P. F. (1998) Evolution of the mechanisms of language output: Comparative neurobiology of vocal and manual communication. In Hurford, J. R. and Studdert-Kennedy, M. and Knight C., editors, Approaches to the Evolution of Language: Social and Cognitive Bases . Cambridge: Cambridge University Press.

MacNeilage, P. F. (1998) Evolution of the mechanisms of language output: Comparative neurobiology of vocal and manual communication. In Hurford, J. R. and Studdert-Kennedy, M. and Knight C., editors, Approaches to the Evolution of Language: Social and Cognitive Bases. Cambridge: Cambridge University Press.

2005	-	The Evolution of Language: A Comparative Review - Fitch	::	2
		MacNeilage, P.F. (1998a) "Evolution of the mechanisms of language output: comparative neurobiology of vocal and manual communication" In: Hurford, J.R., Studdert-Kennedy, M., Knight, C. eds. , Approaches to the Evolution of Language, Cambridge University Press, New York, pp 222-241
2002	-	Did language evolve like the vertebrate eye? - Botha	::
		MacNeilage, P.F., 1998ba. Evolution of the mechanism of language output: comparative neurobiology of vocal and manual communication. In: Hurford, J.R., Studdert-Kennedy, M., Knight, C. (Eds.), Approaches to the Evolution of Language. Social and Cognitive Bases. Cambridge University Press, Cambridge, pp. 222-241.
1999	-	Possible stages in the evolution of the language capacity - Jackendoff	::	26
		27 MacNeilage, P. (1998) Evolution of the mechanisms of language output: comparative neurobiology of vocal and manual communication, in Approaches to the Evolution of Language (Hurford, J., Studdert-Kennedy, M. and Knight, C., eds), pp. 222--241, Cambridge University Press