National Research Council (U.S.). Committee on Disability Determination for Individuals with Visual Impairments, Lennie, P., & Van Hemel, S. B. (2002). Visual impairments: Determining eligibility for social security benefits. National Academy Press.
Cita Chicago (17th ed.)National Research Council (U.S.). Committee on Disability Determination for Individuals with Visual Impairments, Peter Lennie, i Susan B. Van Hemel. Visual Impairments: Determining Eligibility for Social Security Benefits. Washington, D.C.: National Academy Press, 2002.
Cita MLA (9th ed.)National Research Council (U.S.). Committee on Disability Determination for Individuals with Visual Impairments, et al. Visual Impairments: Determining Eligibility for Social Security Benefits. National Academy Press, 2002.