Bates, E. Language and Context. New York, Academic Press, 1976.
Bernard-Opits. Pragmatic Analysis of the Communicative Behavior of an Autistic Child. J. Speech Hear. Disord. 49, 99-109 (1982).
Bruner, J. S. Child's Talk-Learning to Use Language. Oxford University Press, 1983 (寺田晃・本郷一夫訳. 乳幼児の話しことば. 東京, 新曜社, 1988).
母子健康手帳 1986
Escalona, S. K. Basic modes of social interaction: Their emergence and patternning during the first two years of life. Merrill-Palmer Quarterly. 19 (3), 205-232 (1973).
