KirchnerC., & LowmanC.Sources of variation in the estimated prevalence of visual loss.Journal of Visual Impairment and Blindness, 1978, 72(8) 329–333.
2.
LevitanS. A., & TaggartRobertJobs for the Disabled.Baltimore, Md.: The Johns Hopkins University Press, 1977.
3.
LowmanC., & KirchnerC.Elderly blind and visually impaired persons: Projected numbers in the year 2000.Journal of Visual Impairment and Blindness, 1979, 73(2) 69–73.
4.
PetersonR., LowmanC., & KirchnerC.Visual handicap: Statistical data on a social process.Journal of Visual Impairment and Blindness, 1978, 72(10) 419–421.
5.
Statistical Brief #1 (see Kirchner & Lowman, above).
6.
Statistical Brief #2 (see Peterson, Lowman & Kirchner, above).
7.
Statistical Brief #3 (see Lowman and Kirchner, above).
8.
U.S. Bureau of the Census.“Concepts and Methods Used in Labor Force Statistics Derived from the Current Population Survey.”Current Population Reports, Series P-23, No. 22, October 1976.
9.
U.S. Department of Labor.Sheltered Workshop Study: A Nationwide Report on Sheltered Workshops and their Employment of Handicapped Individuals.Volume II: Statistical Appendix. Washington, D.C., June1977, p. A-1.
