Steklis, H. and Harnad, S. (1976) From hand to mouth: Some critical stages in the evolution of language. In S. R. Harnad and H. D. Steklis and J. Lancaster, editors, Origins and Evolution of Language and Speech. Annals of the New York Academy of Sciences, Volume 280 , pages 445--455.

Steklis, H. and Harnad, S. (1976) From hand to mouth: Some critical stages in the evolution of language. In S. R. Harnad and H. D. Steklis and J. Lancaster, editors, Origins and Evolution of Language and Speech. Annals of the New York Academy of Sciences, Volume 280, pages 445--455.

2002	-	Concept Formation and Language Sharing: Combining Steels' Language Games with Simple Competitive Learning - Lewin	::	1
		[34] H. Steklis and S. Harnad. From hand to mouth: Some critical stages in the evolution of language. Origins and Evolution of Language and Speech, pages 445--455.
2001	-	The adaptive advantage of symbolic theft over sensorimotor toil: Grounding language in perceptual categories - Cangelosi,Harnad	::	28
		Steklis, H.D. and S. Harnad. 1976. From hand to mouth: Some critical stages in the evolution of language. In: S. Harnad et al. 1976, pp. 445-455.