APA (7th ed.) Citation

Sigelman, C. K., & Rider, E. A. (2012). Human development across the life span (7. ed., internat. ed.). Wadsworth.

Chicago Style (17th ed.) Citation

Sigelman, Carol K., and Elizabeth A. Rider. Human Development Across the Life Span. 7. ed., internat. ed. Belmont Calif: Wadsworth, 2012.

MLA (9th ed.) Citation

Sigelman, Carol K., and Elizabeth A. Rider. Human Development Across the Life Span. 7. ed., internat. ed. Wadsworth, 2012.