APA (7th ed.) Citation

Lim, R., & McDonald, J. Hannah hippo's new helper. Ladybird Books Ltd.

Chicago Style (17th ed.) Citation

Lim, Rebecca, and Jill McDonald. Hannah Hippo's New Helper. London: Ladybird Books Ltd.

MLA (9th ed.) Citation

Lim, Rebecca, and Jill McDonald. Hannah Hippo's New Helper. Ladybird Books Ltd.

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