Astley, N. &. B. (2003). George's First Day at Playgroup. Ladybird Books.
Lua i Stíl Chicago (17ú heag.)Astley, Neville & Baker. George's First Day at Playgroup. london: Ladybird Books, 2003.
Lua MLA (8ú heag.)Astley, Neville & Baker. George's First Day at Playgroup. Ladybird Books, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.