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শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNational Research Council (U.S.). Panel on Policy and Data Needs to Meet the Challenge of Aging in Africa, Inc ebrary, Barney Cohen, এবং Jane A. Menken. Aging in Sub-Saharan Africa: Recommendations for Furthering Research. Washington, DC: National Academies Press, 2006.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিNational Research Council (U.S.). Panel on Policy and Data Needs to Meet the Challenge of Aging in Africa, et al. Aging in Sub-Saharan Africa: Recommendations for Furthering Research. National Academies Press, 2006.