Cita APA (7th ed.)

Birren, J. E. (1964). The psychology of aging. Prentice-Hall.

Cita Chicago (17th ed.)

Birren, James E. The Psychology of Aging. Englewood Cliffs, N.J: Prentice-Hall, 1964.

Cita MLA (9th ed.)

Birren, James E. The Psychology of Aging. Prentice-Hall, 1964.