APA (7th ed.) Citation

Horsley, L., & Lewis, J. Monkey business. Ladybird Books.

Chicago Style (17th ed.) Citation

Horsley, Lorraine, and Jan Lewis. Monkey Business. London: Ladybird Books.

MLA (9th ed.) Citation

Horsley, Lorraine, and Jan Lewis. Monkey Business. Ladybird Books.

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