Lightfoot, D. (2000) The spandrels of the linguistic genotype. In Chris Knight and James R. Hurford and Michael Studdert-Kennedy, editors, The Evolutionary Emergence of Language: Social Function and the Origins of Linguistic Form . Cambridge: Cambridge University Press.

Lightfoot, D. (2000) The spandrels of the linguistic genotype. In Chris Knight and James R. Hurford and Michael Studdert-Kennedy, editors, The Evolutionary Emergence of Language: Social Function and the Origins of Linguistic Form. Cambridge: Cambridge University Press.

2008	-	Language as shaped by the brain - Christiansen,Chater	::	5
		Lightfoot, D. (2000) The spandrels of the linguistic genotype. In: The evolutionary emergence of language: Social function and the origins of linguistic form, ed. C. Knight, M. Studdert-Kennedy & J. R. Hurford, pp. 231-47. Cambridge University Press.
2004	-	Self-organization and Language Evolution: System, Population and Individual - Ke	::	4
		Lightfoot, D. (2000). The spandrels of the linguistic genotype. In Knight, C., Hurford, J. R., and Studdert-Kennedy, M., editors, The Evolutionary Emergence of Language: Social Function and the Origins of Linguistic Form. Cambridge University Press, Cambridge.
2003	-	Grammatical Assimilation - Briscoe	::	10
		Lightfoot, D. (2000) `The spandrels of the linguistic genotype' in C. Knight, M. Studdert-Kennedy and J. Hurford (ed.), The Evolutionary Emergence of Language, Cambridge University Press, Cambridge, pp. 231-247.
2002	-	Did language evolve like the vertebrate eye? - Botha	::
		Lightfoot, D., 2000. The spandrels of the linguistic genotype. In: Knight, C., Studdert-Kennedy, M., Hurford, J.R. (Eds.), The Evolutionary Emergence of Language. Social Functions and the Origins of Linguistic Form. Cambridge University Press, Cambridge, pp. 231-247.