APA (7th ed.) Citation

Murray, W., & Aitchison, M. Books are exciting. Ladybird Books Ltd.

Chicago Style (17th ed.) Citation

Murray, W., and M. Aitchison. Books Are Exciting. Loughborough: Ladybird Books Ltd.

MLA (9th ed.) Citation

Murray, W., and M. Aitchison. Books Are Exciting. Ladybird Books Ltd.

Warning: These citations may not always be 100% accurate.