1. National Society to Prevent Blindness,1992
2. Transportation Data Center, National Highway Traffic Safety Administration,1992
3. Highway Safety Policy Analysis Section, Division of Planning and Budget. 1990 Wisconsin Traffic Crash Facts Book. Wisconsin Dept. of Transportation.
4. Operational Research Department, National Society to Prevent Blindness,1980
5. A 10-year survey of eye injuries in Northern Ireland, 196776;Canavan;Br J Ophthalmol,1980