Lua APA (7ú heag.)
Turner, J. S., & Helms, D. B. (1983). Lifespan development (2nd. ed.). Holt, Rinehart and Winston.
Lua i Stíl Chicago (17ú heag.)
Turner, Jeffrey S., agus Donald B. Helms. Lifespan Development. 2nd. ed. New York: Holt, Rinehart and Winston, 1983.
Lua MLA (9ú heag.)
Turner, Jeffrey S., agus Donald B. Helms. Lifespan Development. 2nd. ed. Holt, Rinehart and Winston, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.