Shaffer, D. R. Developmental psychology childhood and adolescence. Brooks/Cole.
Lua i Stíl Chicago (17ú heag.)Shaffer, David R. Developmental Psychology Childhood and Adolescence. Brooks/Cole.
Lua MLA (8ú heag.)Shaffer, David R. Developmental Psychology Childhood and Adolescence. Brooks/Cole.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.