Citação norma APA
ebrary, Inc, Bass, S. A., & Weiss, R. S. (2002). Challenges of the third age: Meaning and purpose in later life. Oxford University Press.
Citação norma Chicago
ebrary, Inc, Scott A. Bass, and Robert Stuart Weiss. Challenges of the Third Age: Meaning and Purpose in Later Life. Oxford [England] ; New York: Oxford University Press, 2002.
Citação norma MLA
ebrary, Inc, et al. Challenges of the Third Age: Meaning and Purpose in Later Life. Oxford University Press, 2002.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.