Masoro, E. J. (1999). Challenges of biological aging. Springer.
Lua i Stíl Chicago (17ú heag.)Masoro, Edward J. Challenges of Biological Aging. New York: Springer, 1999.
Lua MLA (9ú heag.)Masoro, Edward J. Challenges of Biological Aging. Springer, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.