Leider, R. J., & Shapiro, D. A. (2008). Something to live for: Finding your way in the second half of life. Berrett-Koehler Pub.
Chicago Style (17. basım) AtıfLeider, Richard J., ve David A. Shapiro. Something to Live for: Finding Your Way in the Second Half of Life. San Francisco, CA: Berrett-Koehler Pub, 2008.
MLA (8th ed.) AtıfLeider, Richard J., ve David A. Shapiro. Something to Live for: Finding Your Way in the Second Half of Life. Berrett-Koehler Pub, 2008.
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