APA (7th ed.) Citation

Enid Blyton. (2009). Secrets at Malory Towers (2019.). Hodder Children's book.

Chicago Style (17th ed.) Citation

Enid Blyton. Secrets at Malory Towers. 2019. Hodder Children's book, 2009.

MLA (9th ed.) Citation

Enid Blyton. Secrets at Malory Towers. 2019. Hodder Children's book, 2009.

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