Cita APA (7a ed.)

Achenbaum, W. A. (2013). Robert N. Butler, MD: Visionary of healthy aging. Columbia University Press.

Cita Chicago Style (17a ed.)

Achenbaum, W. Andrew. Robert N. Butler, MD: Visionary of Healthy Aging. New York: Columbia University Press, 2013.

Cita MLA (8a ed.)

Achenbaum, W. Andrew. Robert N. Butler, MD: Visionary of Healthy Aging. Columbia University Press, 2013.