TY  - GEN
AU  - Schiefelbusch, Richard L. (ed.)
ED  - U.S. Institute of Child Heal and Human Development
TI  - Language of the mentally retarded
SN  - 0839106297
PY  - 1972///
CY  - Baltimore
PB  - University Park Press
KW  - Mentally handicapped - Language - Congresses
ER  -