Cita APA (7a ed.)

Lachman, M. E. (1990). When bad happen to older people: Age differences in attributional style. [s.n.].

Cita Chicago Style (17a ed.)

Lachman, Margie E. When Bad Happen to Older People: Age Differences in Attributional Style. [S.l.]: [s.n.], 1990.

Cita MLA (9a ed.)

Lachman, Margie E. When Bad Happen to Older People: Age Differences in Attributional Style. [s.n.], 1990.