APA-referens (7:e uppl.)

Curtis, H. J. (1966). Biological mechanisms of aging. C.C. Thomas.

Chicago-referens (17:e uppl.)

Curtis, Howard J. Biological Mechanisms of Aging. Springfield: C.C. Thomas, 1966.

MLA-referens (9:e uppl.)

Curtis, Howard J. Biological Mechanisms of Aging. C.C. Thomas, 1966.