Berger, K. S. (2005). The developing person through the life span (6th ed.). Worth Publishers.
Lua i Stíl Chicago (17ú heag.)Berger, Kathleen Stassen. The Developing Person Through the Life Span. 6th ed. NewYork: Worth Publishers, 2005.
Lua MLA (9ú heag.)Berger, Kathleen Stassen. The Developing Person Through the Life Span. 6th ed. Worth Publishers, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.