APA (7th ed.) Citation

Sigelman, C. K., & Rider, E. A. (2009). Life-span human development (6th ed.). Wadsworth Cengage Learning.

Chicago Style (17th ed.) Citation

Sigelman, Carol K., and Elizabeth A. Rider. Life-span Human Development. 6th ed. Australia ; Belmont, CA: Wadsworth Cengage Learning, 2009.

MLA (9th ed.) Citation

Sigelman, Carol K., and Elizabeth A. Rider. Life-span Human Development. 6th ed. Wadsworth Cengage Learning, 2009.