Cita APA (7th ed.)

Twente, E. E. (1970). Never too old: The aged in community life. Jossey Bass.

Cita Chicago (17th ed.)

Twente, Esther E. Never Too Old: The Aged in Community Life. San francisco: Jossey Bass, 1970.

Cita MLA (9th ed.)

Twente, Esther E. Never Too Old: The Aged in Community Life. Jossey Bass, 1970.