Halter, J. B., & Joseph G. Ouslander, M. E. T. (2009). Hazzard´s Geriatric Medicine and Gerontology (6.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Halter, Jeffrey B., agus Mary E. Tinetti Joseph G. Ouslander. Hazzard´s Geriatric Medicine and Gerontology. 6. McGraw-Hill, 2009.
Lua MLA (8ú heag.)Halter, Jeffrey B., agus Mary E. Tinetti Joseph G. Ouslander. Hazzard´s Geriatric Medicine and Gerontology. 6. McGraw-Hill, 2009.
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