Description: Before speech :

Other Authors:	Bullowa, Margaret
Format:	Book
Language:	English
Published:	Cambridge: Cambridge University Press, 1979.
Subjects:	Interpersonal communication in children Nonverbal communication in children

Physical Description:	viii, 400 p. ; 22 cm.
Bibliography:	Includes bibliography and index.
ISBN:	052129522X 0521220319