Before speech :  the beginning of interpersonal communication / 
edited by Margaret Bullowa 
 - Cambridge :  The University Press,  c1979 
 - viii, 400 p. :  ill. ;  23 cm. 
<br/><br/>Bibliography : p. 373-400 
<br/><br/><label>ISBN: </label>0521220319 :  PND 15.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Interpersonal communication in children<br/>Nonverbal communication in children<br/>Parent and child
<br/><br/><label>Dewey Class. No.: </label>136.7352