1. Adler's Textbook of Ophthalmology;Scheie,1969
2. Kahn, H. A., and Moorhead, H. B.: Statistics on Blindness in the Model Reporting Area, 1969–1970. U.S. Department of Health, Education, and Welfare, Public Health Service publication No. (NIH) 73–427, pp. 120–143, 1973.
3. The model reporting area for blindness statistics;Goldstein;Sight Sav. Rev.,1962
4. Blindness registers as a research tool;Goldstein;Public Health Rep.,1964
5. Annual Tabulations of the Model Reporting Area for Blindness Statistics. 1962 Statistical Report. U.S. Department of Health, Education, and Welfare, Public Health Service publication No. 1176. 1964, p. iii.