TY  - BOOK
AU  - Routh, Donald K. 
TI  - The experimental psychology of mental retardation
SN  - 9780202308883
U1  - Res 618.9289 Ex715 2006  
PY  - 2006///.
CY  - New Jersey
PB  - AldineTransaction.
KW  - Children with mental disabilities -- Congresses.
N1  - Includes bibliographical references
ER  -