Tohutoro APA (7th ed.)
ebrary, Inc, Ferraro, K. F., & Wilmoth, J. M. (2013). Gerontology: Perspectives and issues (4th ed.). Springer.
Tohutoru Kātū Chicago (17th ed.)
ebrary, Inc, Kenneth F. Ferraro, me Janet M. Wilmoth. Gerontology: Perspectives and Issues. 4th ed. New York, NY: Springer, 2013.
Tohutoro MLA (9th ed.)
ebrary, Inc, et al. Gerontology: Perspectives and Issues. 4th ed. Springer, 2013.
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