TY  - BOOK
TI  - Mental retardation
T2  - Karger continuing education series (S. Karger, Basel)
SN  - 3-8055-3433-7
U1  - 362.3616.83 21E
PY  - 1982///
CY  - Basel
PB  - S. Karger
N1  - Notes bibliogr
ER  -