APA (7th ed.) Citation

Mongredien, S. (2008). Oliver Moon and the troll trouble (1. publ.). Usborne.

Chicago Style (17th ed.) Citation

Mongredien, Sue. Oliver Moon and the Troll Trouble. 1. publ. London: Usborne, 2008.

MLA (9th ed.) Citation

Mongredien, Sue. Oliver Moon and the Troll Trouble. 1. publ. Usborne, 2008.

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