Cita APA (7a ed.)

Aiken, L. R. (1995). Aging: An introduction to gerontology. Sage Publications.

Cita Chicago Style (17a ed.)

Aiken, Lewis R. Aging: An Introduction to Gerontology. Thousand Oaks (California) [etc.]: Sage Publications, 1995.

Cita MLA (9a ed.)

Aiken, Lewis R. Aging: An Introduction to Gerontology. Sage Publications, 1995.