Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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