APA (7th ed.) Citation

Taylor, G., & Parker-Rees, G. My secret book of rules. Ladybird Books.

Chicago Style (17th ed.) Citation

Taylor, Geraldine, and Guy Parker-Rees. My Secret Book of Rules. London: Ladybird Books.

MLA (9th ed.) Citation

Taylor, Geraldine, and Guy Parker-Rees. My Secret Book of Rules. Ladybird Books.

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