Cross, I. & Woodruff, G. E. (2009). Music as a communicative medium.Archivado el 2 de abril de 2012 en Wayback Machine. In R. Botha and C. Knight (eds) The Prehistory of Language (pp113-144), Oxford: Oxford University Press, pp. 77-98.
Knight, C. (2010). The origins of symbolic culture. In Ulrich J. Frey, Charlotte Störmer and Kai P. Willfuhr (eds) 2010. Homo Novus – A Human Without Illusions. Berlin, Heidelberg: Springer-Verlag, pp. 193-211.
Knight, C. 2010. The origins of symbolic culture. In Ulrich J. Frey, Charlotte Störmer and Kai P. Willfuhr (eds) 2010. Homo Novus – A Human Without Illusions. Berlin, Heidelberg: Springer-Verlag, pp. 193-211.
Knight, C. 2000. Play as precursor of phonology and syntax. In Knight, C., M. Studdert-Kennedy and J. R. Hurford (eds), 2000. The Evolutionary Emergence of Language. Social function and the origins of linguistic form. Cambridge: Cambridge University Press, pp. 99-119.
Cross, I. & Woodruff, G. E. (2009). Music as a communicative medium.Archivado el 2 de abril de 2012 en Wayback Machine. In R. Botha and C. Knight (eds) The Prehistory of Language (pp113-144), Oxford: Oxford University Press, pp. 77-98.