References
- British Medical Association's Memorandum on Medical Standards for Road, Rail and Air Transport (1954).
- Motor Vehicles (Driving Licences) Regs. 1950.
- Pappanikov, A. J., and Bowman, Peter W. 'First Results of a Residential School's Driver Education Program.' American Journal of Mental Deficiency, Vol. 65, 1960–61, p. 194.
- Sellring, Lowell S. 'The Feebleminded Motorist,' read at the Ninety-seventh Annual Meeting of the American Psychiatric Association, Section on Mental Deficiency, Richmond, Virginia, May 5th-9th, 1941.
- Sunday Times, 29th July, 1962.
- The Times, 8th August, 1962.