Údar
- Institution of Mechanical Engineers (Great Britain). Automobile Division
- British Technical Council of the Motor and Petroleum Industries 1 toradh
- Institute of Petroleum (Great Britain) 1 toradh
- Institution of Mechanical Engineers (Great Britain). Combustion Engines Group 1 toradh
- Institution of Mechanical Engineers (Great Britain). Engineering Sciences Division 1 toradh
- International Federation of Automobile Engineers' and Technicians' Associations 1 toradh
- Morgan, J. A. 1 toradh
- Symposium on Motor Vehicle Air Pollution Control (London 1 toradh