APA (7th ed.) Citation

Turner, J. S., & Helms, D. B. (1987). Lifespan development (3. ed.). Holt, Rinehart and Winston.

Chicago Style (17th ed.) Citation

Turner, Jeffrey S., and Donald B. Helms. Lifespan Development. 3. ed. New York [u.a.]: Holt, Rinehart and Winston, 1987.

MLA (9th ed.) Citation

Turner, Jeffrey S., and Donald B. Helms. Lifespan Development. 3. ed. Holt, Rinehart and Winston, 1987.