APA
(1991). Geriatrics:Medicine for midlife and beyond. USA: Genderm.
Chicago
1991. Geriatrics:Medicine for midlife and beyond. USA: Genderm.
Harvard
(1991). Geriatrics:Medicine for midlife and beyond. USA: Genderm.
MLA
Geriatrics:Medicine for midlife and beyond. USA: Genderm. 1991.