TY  - BOOK
AU  - Tredgold,Alfred Frank,1870-
AU  - Craft,Michael
TI  - Tredgolds' mental retardation
SN  - 070200684X
PY  - 1979///
CY  - London
PB  - Bailliere Tindall
KW  - Mental deficiency
KW  - Mental retardation
ER  -