International Perspectives on Aging. (1982). International Perspectives on Aging: Population and Policy Challenges. United Nations Fund for Population Activites.
Trích dẫn kiểu ChicagoInternational Perspectives on Aging. International Perspectives on Aging: Population and Policy Challenges. UN: United Nations Fund for Population Activites, 1982.
Trích dẫn MLAInternational Perspectives on Aging. International Perspectives on Aging: Population and Policy Challenges. United Nations Fund for Population Activites, 1982.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.