APA (7th ed.) Citation

Horowitz, A. (2015). Return to groosham grange. Walker Books Ltd..

Chicago Style (17th ed.) Citation

Horowitz, Anthony. Return to Groosham Grange. London: Walker Books Ltd., 2015.

MLA (9th ed.) Citation

Horowitz, Anthony. Return to Groosham Grange. Walker Books Ltd., 2015.

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