APA (7th ed.) Citation

Irwin, D. B., & Simons, J. A. (1994). Lifespan developmental psychology. Wm. C. Brown Communications.

Chicago Style (17th ed.) Citation

Irwin, Donald B., and Janet A. Simons. Lifespan Developmental Psychology. Madison, WI: Wm. C. Brown Communications, 1994.

MLA (9th ed.) Citation

Irwin, Donald B., and Janet A. Simons. Lifespan Developmental Psychology. Wm. C. Brown Communications, 1994.