APA aipamena

Astley, N. &. B. (2003). George's First Day at Playgroup. Ladybird Books.

Chicago Style aipamena

Astley, Neville & Baker. George's First Day at Playgroup. london: Ladybird Books, 2003.

MLA aipamena

Astley, Neville & Baker. George's First Day at Playgroup. Ladybird Books, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.