Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

American Association on Mental Retardation, Marsha Mailick Seltzer, Marty Wyngaarden Krauss, y Matthew P. Janicki. Life Course Perspectives on Adulthood and Old Age. Washington: American Association on Mental Retardation, 1994.

Cita MLA (9a ed.)

American Association on Mental Retardation, et al. Life Course Perspectives on Adulthood and Old Age. American Association on Mental Retardation, 1994.