1. California State Department of Public Health: Prevention of Blindness Project Studies: Belloc, N;B.: Blindness among the aged. Pub. Health,1956
2. Causes of blindness in California;Belloc;Sight-Saving Rev.,1957
3. Belloc, N. B.: A survey of blind persons receiving service from the bureau of vocational rehabilitation. December, 1954. (Mimeographed.)
4. Belloc, N. B.: Summary of statistical data available on the prevalence, incidence, and causes of blindness in California. (Mimeographed.)
5. Belloc, N. B.: Analysis of California health survey reports of visual impairment. (Mimeographed.)