Newman, Barbara M. <br/><br/>
Infancy and childhood :  development and its contexts / 
Barbara M. Newman, Phillip R. Newman. 
 - New York :  John Wiley & Sons,  1978. 
 - 619 p. :  ill. ;  24 cm. 
<br/><br/>p. 528-580. 
<br/><br/><label>ISBN: </label>0471022128 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child psychology.<br/>Infant psychology.<br/>Environmental psychology.<br/>Social psychology.