TY  - BOOK
AU  - Clarke,A.D.B.
AU  - Clarke,A.M.
TI  - Mental retardation and behavioural research: under the auspices of the Institute for Research into Mental Retardation and with assistance from the Department of Education and Science, study group held at the University of Hull 
SN  - 044300952X :
U1  - 136.766 
PY  - 1973///
CY  - Edinburgh
PB  - Churchill Livingstone
KW  - Mental retardation
KW  - Research
N1  - Imprint covered by label : The Williams & Wilkins Co., Baltimore; Includes index
ER  -