APA
"United Nations E. a. S. A. (. o., "United Nations E. a. S. A. (. o., . (1975). Aging. New: York U N.
Chicago
"United Nations Economic and Social Affairs (Deptt of-)", "United Nations Economic and Social Affairs (Deptt of-)", . 1975. Aging. New: York U N.
Harvard
"United Nations E. a. S. A. (. o., "United Nations E. a. S. A. (. o., . (1975). Aging. New: York U N.
MLA
"United Nations Economic and Social Affairs (Deptt of-)", "United Nations Economic and Social Affairs (Deptt of-)", . Aging. New: York U N. 1975.