TY  - BOOK
AU  - Richard L. Schiefelbusch
TI  - Language of the mentally retarded
SN  - 0-8391-0629-7
U1  - 649.15914 
PY  - 1972///
CY  - London
PB  - University Park Press
N1  - Richard L. Schiefelbusch: Language of the mentally retarded.  London.  University Park Press, 1972. 0-8391-0629-7--(649.15914SCH)
ER  -