Cofnodi Dyfyniadau
Dyfyniad APA
ebrary, Inc, Schaie, K. W., & Willis, S. L. (2011). Handbook of the psychology of aging (7th ed.). Elsevier/Academic Press.
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Dyfyniad Arddull Chicago
ebrary, Inc, K. Warner Schaie, and Sherry L. Willis. Handbook of the Psychology of Aging. 7th ed. Amsterdam: Elsevier/Academic Press, 2011.
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Dyfyniad MLA
ebrary, Inc, et al. Handbook of the Psychology of Aging. 7th ed. Elsevier/Academic Press, 2011.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.