APA-referens

Birren, J. E. (2001). Psychology of aging. San Diego, Calif: Academic Press.

Chicago-stil citat

Birren, James E. Psychology of Aging. San Diego, Calif: Academic Press, 2001.

MLA-referens

Birren, James E. Psychology of Aging. San Diego, Calif: Academic Press, 2001.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.