APA (7th ed.) Citation

Butterworth,Nick. (1999). Percy's bumpy ride. Harpercollins publishers ltd..

Chicago Style (17th ed.) Citation

Butterworth,Nick. Percy's Bumpy Ride. Great britain: Harpercollins publishers ltd., 1999.

MLA (9th ed.) Citation

Butterworth,Nick. Percy's Bumpy Ride. Harpercollins publishers ltd., 1999.

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