APA (7th ed.) Citation

Oxenbury, H. (2018). Say goodnight: A first book for babies. Walker Books Ltd.

Chicago Style (17th ed.) Citation

Oxenbury, Helen. Say Goodnight: A First Book for Babies. London: Walker Books Ltd, 2018.

MLA (9th ed.) Citation

Oxenbury, Helen. Say Goodnight: A First Book for Babies. Walker Books Ltd, 2018.

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