Cita APA

Seltzer, M. M., & Krauss, M. W. (1994). Life course perspectives on adulthood and old age. Washington, DC: American Association on Mental Retardation.

Chicago Style Citation

Seltzer, Marsha Mailick, i Marty Wyngaarden Krauss. Life Course Perspectives On Adulthood and Old Age. Washington, DC: American Association on Mental Retardation, 1994.

Cita MLA

Seltzer, Marsha Mailick, i Marty Wyngaarden Krauss. Life Course Perspectives On Adulthood and Old Age. Washington, DC: American Association on Mental Retardation, 1994.