Learning, Speech and Thought in the Mentally Retarded
Proceedings of Symposia 4 and 5 Held at the Middlesex Hospital Medical School on 31 October 1969 and 20 March 1970 under the Auspices of the Institute for Research Into Mental Retardation, London

Cover image: Learning, Speech and Thought in the Mentally Retarded 9780407249509
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