McPherson, B. (1983). Aging as a social process: An introduction to individual and population. Butterworths.
Chicago-viite (17. p.)McPherson, Barry. Aging as a Social Process: An Introduction to Individual and Population. Toronto: Butterworths, 1983.
MLA-viite (9. p.)McPherson, Barry. Aging as a Social Process: An Introduction to Individual and Population. Butterworths, 1983.
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