National Council on the Aging (U.S.), Mathiasen, G., & Lehmann, V. (1963). Guardianship and protective services for older people: The report of a National Council on the Aging Project. Ncoa Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Council on the Aging (U.S.), Geneva Mathiasen, و Virginia Lehmann. Guardianship and Protective Services for Older People: The Report of a National Council on the Aging Project. [New York]: Ncoa Press, 1963.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)National Council on the Aging (U.S.), et al. Guardianship and Protective Services for Older People: The Report of a National Council on the Aging Project. Ncoa Press, 1963.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.