Speech and thought in severe subnormality: an experimental study/
O'Connor, Neil
Speech and thought in severe subnormality: an experimental study/ N. O'connor and Beate Hermelin - Oxford Pergamon Press 1962 - 122 p. : ill. ; 22 cm.
Includes bibliography.
Mentally handicapped children
Speech and thought in severe subnormality: an experimental study/ N. O'connor and Beate Hermelin - Oxford Pergamon Press 1962 - 122 p. : ill. ; 22 cm.
Includes bibliography.
Mentally handicapped children
