TY  - BOOK
AU  - Schiefelbusch,Richard L.
AU  - Smith,James O.
AU  - Copeland,Ross H.
TI  - Language and mental retardation, empirical and conceptual considerations
AV  - LC4602 .L3
U1  - 371.92 
PY  - 1967///]
CY  - New York
PB  - Holt, Rinehart and Winston
KW  - Mentally handicapped children
KW  - Language
KW  - Local
N1  - Includes bibliographies
ER  -