APA (7th ed.) Citation

Hughes, F. P., Noppe, I. C., & Noppe, L. D. (1991). Human development across the life span. Merrill.

Chicago Style (17th ed.) Citation

Hughes, Fergus P., Illene C. Noppe, and Lloyd D. Noppe. Human Development Across the Life Span. New York: Merrill, 1991.

MLA (9th ed.) Citation

Hughes, Fergus P., et al. Human Development Across the Life Span. Merrill, 1991.