Cita APA (7a ed.)

Sherraden, M. W., Hinterlong, J., & Morrow-Howell, N. (2001). Productive Aging: Concepts and Challenges. Johns Hopkins University Press.

Cita Chicago Style (17a ed.)

Sherraden, Michael W., James Hinterlong, y Nancy Morrow-Howell. Productive Aging: Concepts and Challenges. Baltimore, Md.: Johns Hopkins University Press, 2001.

Cita MLA (8a ed.)

Sherraden, Michael W., et al. Productive Aging: Concepts and Challenges. Johns Hopkins University Press, 2001.