APA (7th ed.) Citation

Sigelman, C. K., & Rider, E. A. (2012). Human development: Across the life span (7e.). Wadsworth/Cengage Learning.

Chicago Style (17th ed.) Citation

Sigelman, Carol K., and Elizabeth A. Rider. Human Development: Across the Life Span. 7e. Australia: Wadsworth/Cengage Learning, 2012.

MLA (9th ed.) Citation

Sigelman, Carol K., and Elizabeth A. Rider. Human Development: Across the Life Span. 7e. Wadsworth/Cengage Learning, 2012.