APA (7th ed.) Citation

Turner, J. S., & Helms, D. B. (1991). Lifespan development (4th ed.). Holt, Rinehart, and Winston.

Chicago Style (17th ed.) Citation

Turner, Jeffrey S., and Donald B. Helms. Lifespan Development. 4th ed. Fort Worth: Holt, Rinehart, and Winston, 1991.

MLA (9th ed.) Citation

Turner, Jeffrey S., and Donald B. Helms. Lifespan Development. 4th ed. Holt, Rinehart, and Winston, 1991.