TY  - BOOK
AU  - International association for the science study of mental deficiency (N.D)
ED  - International association for the science study of mental deficiency (N.D)
TI  - Proceedings :  science and service in mental retardation ed by J M Berg
U1  - S:1:4p1,N85, M6 
PY  - 1986///
CY  - London
PB  - methuen       
KW  - PSYCHOLOGY
ER  -