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 - Clarke, A. D. B. (Alan Douglas Benson); Clarke, A. M. (Ann Margaret) (Edinburgh : Churchill Livingstone, 1973)
Imprint covered by label : The Williams & Wilkins Co., Baltimore
Includes index
Keywords: Mental retardation; Mental retardation -- Research