Kohn, Martin <br/><br/>
Social Competence, Sysmptoms and Underachievement in Childhood:   A Longitudinal Perspective 
/by Martin Kohn 
 - New York:  John Wiley & Sons;  1977. 
 - 288p. 
<br/><br/><label>ISBN: </label>0-470-99151-8 
<br/><br/><label>Dewey Class. No.: </label>155.418  / KOH/S