Hart, Betty,  1927- <br/><br/>
The social world of children learning to talk / 
by Betty Hart and Todd R. Risley. 
 - Baltimore, Md. :  P.H. Brookes Pub.,  c1999. 
 - xvi, 301 p. ;  23 cm. 
<br/><br/>Includes bibliographical references (p. 203-211) and index. 
<br/><br/><label>ISBN: </label>155766420X 
<br/><br/><label>LCCN: </label>99013087 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language acquisition.<br/>Social interaction in children.
<br/><br/><label>LC Class. No.: </label>P118  / .H36 1999 
<br/><br/><label>Dewey Class. No.: </label>401/.93