TY  - BOOK
AU  - Kohn, Martin
TI  - Social Competence, Sysmptoms and Underachievement in Childhood: : A Longitudinal Perspective
SN  - 0-470-99151-8
U1  - 155.418 
PY  - 1977///
CY  - New York
PB  - John Wiley & Sons
ER  -