APA (7th ed.) Citation

Tree, A. (2009). Secret treasure. Orion Children's Books.

Chicago Style (17th ed.) Citation

Tree, Amy. Secret Treasure. London: Orion Children's Books, 2009.

MLA (9th ed.) Citation

Tree, Amy. Secret Treasure. Orion Children's Books, 2009.

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