Não informado. (1957). Gifted Child Quarterly. National Association for Gifted Children.
Lua i Stíl Chicago (17ú heag.)Não informado. Gifted Child Quarterly. Washington: National Association for Gifted Children, 1957.
Lua MLA (8ú heag.)Não informado. Gifted Child Quarterly. National Association for Gifted Children, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.