APA (7th ed.) Citation

Willis, S. L., & Reid, J. D. (. (1999). Life in the middle: Psychological and social development in middle age. Academic Press.

Chicago Style (17th ed.) Citation

Willis, Sherry L., and James D. (Psychologist) Reid. Life in the Middle: Psychological and Social Development in Middle Age. San Diego, Calif.: Academic Press, 1999.

MLA (8th ed.) Citation

Willis, Sherry L., and James D. (Psychologist) Reid. Life in the Middle: Psychological and Social Development in Middle Age. Academic Press, 1999.