APA (7th ed.) Citation

Almond, D. (2007). Secret heart. Hodder Children's Books.

Chicago Style (17th ed.) Citation

Almond, David. Secret Heart. London: Hodder Children's Books, 2007.

MLA (9th ed.) Citation

Almond, David. Secret Heart. Hodder Children's Books, 2007.

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