Astley, N. &. B. (2003). George's New Dinosaur. Ladybird Books.
Cita Chicago (17th ed.)Astley, Neville & Baker. George's New Dinosaur. london: Ladybird Books, 2003.
Cita MLA (8th ed.)Astley, Neville & Baker. George's New Dinosaur. Ladybird Books, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.