Mental retardation and behavioural research /
Institute for Research into Mental RetardationStudy Group no.41971University of Hull.
Clarke, A. D. B.(Alan Douglas Benson)
Clarke, Ann M.(Ann Margaret),1928-
Edinburgh Churchill Livingstone
1973
'Study Group held at the University of Hull, under the auspices of the Institute for Research into Mental Retardation...'
Includes bibliographies and index
People with mental disabilities