APA (7th ed.) Citation

Gardner, G. (2003). Inventing Elliot (1. publ. in Great Britain 2003, reprinted.). Orion Children's Books.

Chicago Style (17th ed.) Citation

Gardner, Graham. Inventing Elliot. 1. publ. in Great Britain 2003, reprinted. London: Orion Children's Books, 2003.

MLA (9th ed.) Citation

Gardner, Graham. Inventing Elliot. 1. publ. in Great Britain 2003, reprinted. Orion Children's Books, 2003.