Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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