Jersild, A. T. Child psychology. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Jersild, Arthur T. Child Psychology. Prentice-Hall.
Lua MLA (8ú heag.)Jersild, Arthur T. Child Psychology. Prentice-Hall.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.