Cita APA (7a ed.)

Cicero, M. T., & Freeman, P. (2016). How to grow old: Ancient wisdom for the second half of life. Princeton University Press.

Cita Chicago Style (17a ed.)

Cicero, Marcus Tullius, y Philip Freeman. How to Grow Old: Ancient Wisdom for the Second Half of Life. Princeton: Princeton University Press, 2016.

Cita MLA (8a ed.)

Cicero, Marcus Tullius, y Philip Freeman. How to Grow Old: Ancient Wisdom for the Second Half of Life. Princeton University Press, 2016.