Fry, P. S., & Keyes, C. L. M. (2010). New frontiers in resilient aging: Life-strengths and well-being in late life. Cambridge University Press. https://doi.org/10.1017/CBO9780511763151
Chicago-Zitierstil (17. Ausg.)Fry, Prem S., und Corey L. M. Keyes. New Frontiers in Resilient Aging: Life-strengths and Well-being in Late Life. Cambridge: Cambridge University Press, 2010. https://doi.org/10.1017/CBO9780511763151.
MLA-Zitierstil (9. Ausg.)Fry, Prem S., und Corey L. M. Keyes. New Frontiers in Resilient Aging: Life-strengths and Well-being in Late Life. Cambridge University Press, 2010. https://doi.org/10.1017/CBO9780511763151.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.