APA aipamena

Sigelman, C. K., & Rider, E. A. (2009). Life-span human development. Belmont, CA: Wadsworth, Cengage Learning.

Chicago Style aipamena

Sigelman, Carol K., và Elizabeth A. Rider. Life-span Human Development. Belmont, CA: Wadsworth, Cengage Learning, 2009.

MLA aipamena

Sigelman, Carol K., và Elizabeth A. Rider. Life-span Human Development. Belmont, CA: Wadsworth, Cengage Learning, 2009.