References
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- Achenbaum, W. A. (1995). Cross-Frontiers: Gerontology emerges as a science. Ann Cambridge, England: Cambridge University Press.
- Achenbaum, W. A., & Albert, D. M. (1995). Profiles in gerontology: A biographical dictionary. Westport, Connecticut: Greenwood Press.
- Caro, F., & Miller, E. A. (2017). Remembering Robert Geary. Journal of Aging & Social Policy, 29(1), 1–2. doi:10.1080/87568225.2016.1243389