Kagan, Jerome. <br/><br/>
Unstable ideas :  temperament, cognition, and self / 
Jerome Kagan. 
 - Cambridge, Mass. :  Harvard University Press,  1989. 
 - 318 p. ;  25 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>067493038X (alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Developmental psychology.<br/>Temperament in children.<br/>Cognition in children.<br/>Self.<br/>Cognition.<br/>Human Development.<br/>Personality.<br/>Self Concept.